Chancroid (Clinical)

Overview

Definition^[3–7]

Chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid ( soft chancre Soft chancre Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid) is a sexually transmitted disease Sexually Transmitted Disease Sexually transmitted diseases (STDs) are infections that spread either by vaginal intercourse, anal sex, or oral sex. Symptoms and signs may include vaginal discharge, penile discharge, dysuria, skin lesions (e.g., warts, ulcers) on or around the genitals, and pelvic pain. Some infections can lead to infertility and chronic debilitating disease. Sexually Transmitted Infections (STIs) caused by a bacterium, Haemophilus ducreyi Haemophilus ducreyi A species of Haemophilus that appears to be the pathogen or causative agent of the sexually transmitted disease, chancroid. Haemophilus, characterized by painful genital ulcers and suppurative inguinal adenopathy.

Etiology^[5,7]

• H. ducreyi:
  • Gram negative Gram negative Bacteria which lose crystal violet stain but are stained pink when treated by gram’s method. Yersinia spp./Yersiniosis
  • Nonspore forming
  • Nonmotile
  • Facultative anaerobic coccobacillus
  • Grows best in a humid atmosphere
• Associated risk factors for STD:
  • Uncircumcised men
  • Low socioeconomic status
  • Poor hygiene
  • Risky sexual behavior (illicit drug use, sex Sex The totality of characteristics of reproductive structure, functions, phenotype, and genotype, differentiating the male from the female organism. Gender Dysphoria work)

Epidemiology^[2,4,5]

• Chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid is an uncommon infection in most developed countries.
  • In 2011, < 20 cases were recorded in the United States.
  • In 2016, 7 cases were recorded in the United States.
• When it does occur in developed countries, it tends to be in localized outbreaks Outbreaks Sudden increase in the incidence of a disease. The concept includes epidemics and pandemics. Influenza Viruses/Influenza.
• Common in the following regions:
  • Sub-Saharan Africa
  • Southeast Asia ASIA Spinal Cord Injuries
  • Latin America

Pathophysiology^[4–7]

• H. ducreyi infection dependent upon:
  • Size of inoculum (100 colony-forming units carry a 90% risk of infection)
  • Host factors
• Transmission: H. ducreyi enters via skin Skin The skin, also referred to as the integumentary system, is the largest organ of the body. The skin is primarily composed of the epidermis (outer layer) and dermis (deep layer). The epidermis is primarily composed of keratinocytes that undergo rapid turnover, while the dermis contains dense layers of connective tissue. Skin: Structure and Functions microabrasions and causes mucosal breaks during sexual contact.
• Infection process: Pathogen produces a cytolethal distending toxin → irreversible epithelial damage and death → ulceration Ulceration Corneal Abrasions, Erosion, and Ulcers
• Chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid and HIV HIV Anti-HIV Drugs:
  • Chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid increases the risk of heterosexual HIV HIV Anti-HIV Drugs transmission and acquisition by 50–300 times owing to the increased infectiousness of the genital ulcers.
  • HIV HIV Anti-HIV Drugs may worsen the clinical course of chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid.

Clinical Presentation

• Incubation Incubation The amount time between exposure to an infectious agent and becoming symptomatic. Rabies Virus period: Patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship usually develop a lesion between 4 and 10 days after exposure.^[1–5]
• Lesion:
  • Erythematous papules develop at the site of inoculation.
  • Papule Papule Elevated lesion < 1 cm in diameter Generalized and Localized Rashes → pustule Pustule Blister filled with pus Generalized and Localized Rashes → ulcer(s)
  • Chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid:
    • 1–2 cm (0.39–0.79 in.)
    • Painful
    • Erythematous base
    • Well-demarcated borders and ragged edges
    • Gray or yellow purulent exudate Exudate Exudates are fluids, cells, or other cellular substances that are slowly discharged from blood vessels usually from inflamed tissues. Pleural Effusion
    • Bleeds easily
    • Will resolve spontaneously in 1–3 months (if untreated)^[3]
• Affects genital areas and draining lymph nodes Lymph Nodes They are oval or bean shaped bodies (1 – 30 mm in diameter) located along the lymphatic system. Lymphatic Drainage System: Anatomy:
  • In men:
    • Corona, prepuce Prepuce The double-layered skin fold that covers the glans penis, the head of the penis. Penis: Anatomy, or glans of the penis Penis The penis is the male organ of copulation and micturition. The organ is composed of a root, body, and glans. The root is attached to the pubic bone by the crura penis. The body consists of the 2 parallel corpora cavernosa and the corpus spongiosum. The glans is ensheathed by the prepuce or foreskin. Penis: Anatomy
  • In women:
    • Labia, introitus, and perianal areas
    • Can be asymptomatic, if vaginal and cervical areas are affected
  • Autoinoculation Autoinoculation Molluscum Contagiosum is possible, especially in women (i.e., “kissing ulcers” resulting from direct contact between 2 adjacent areas).^[3]
  • Lymphadenopathy Lymphadenopathy Lymphadenopathy is lymph node enlargement (> 1 cm) and is benign and self-limited in most patients. Etiologies include malignancy, infection, and autoimmune disorders, as well as iatrogenic causes such as the use of certain medications. Generalized lymphadenopathy often indicates underlying systemic disease. Lymphadenopathy:^[3,7]
    • Appears around the same time as the genital ulcers (in contrast to lymphogranuloma venereum Lymphogranuloma venereum Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of Chlamydia trachomatis. It is a sexually transmitted disease in the U.S. But is more widespread in developing countries. It is distinguished from granuloma venereum, which is caused by calymmatobacterium granulomatis. Chlamydial Infections).
    • 50% will develop tender, unilateral inguinal lymphadenopathy Inguinal Lymphadenopathy Lymphadenopathy (less common in women owing to differences in lymphatic drainage).
    • 25% will develop buboes Buboes Chancroid with subsequent ulceration Ulceration Corneal Abrasions, Erosion, and Ulcers within 2 weeks.
    • Buboes Buboes Chancroid are painful, may spontaneously rupture (expelling purulent discharge Purulent Discharge Dacryocystitis), and form fistulae Fistulae Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body. Chronic Granulomatous Disease
• Superinfection of ulcers is possible → deep tissue destruction and scarring Scarring Inflammation^[3,7]

Diagnosis

Diagnosis is made by clinical judgment Judgment The process of discovering or asserting an objective or intrinsic relation between two objects or concepts; a faculty or power that enables a person to make judgments; the process of bringing to light and asserting the implicit meaning of a concept; a critical evaluation of a person or situation. Psychiatric Assessment and tests to rule out the 2 most common causes of genital ulcers, herpes simplex Herpes Simplex A group of acute infections caused by herpes simplex virus type 1 or type 2 that is characterized by the development of one or more small fluid-filled vesicles with a raised erythematous base on the skin or mucous membrane. It occurs as a primary infection or recurs due to a reactivation of a latent infection. Congenital TORCH Infections virus Virus Viruses are infectious, obligate intracellular parasites composed of a nucleic acid core surrounded by a protein capsid. Viruses can be either naked (non-enveloped) or enveloped. The classification of viruses is complex and based on many factors, including type and structure of the nucleoid and capsid, the presence of an envelope, the replication cycle, and the host range. Virology ( HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2) and syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis.^[2,3,8]

• Confirmed diagnosis is made by isolation of H. ducreyi on culture (the special media is not widely available).
• Gram stain Gram stain Klebsiella: Organisms appear as parallel strands resembling a “railroad track” or a “school of fish FISH A type of in situ hybridization in which target sequences are stained with fluorescent dye so their location and size can be determined using fluorescence microscopy. This staining is sufficiently distinct that the hybridization signal can be seen both in metaphase spreads and in interphase nuclei. Chromosome Testing.”
• Nucleic acid amplification Nucleic acid amplification Laboratory techniques that involve the in-vitro synthesis of many copies of DNA or RNA from one original template. Septic Arthritis tests (NAAT) has higher detection rates than culture, but are not readily available outside of clinical research Research Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. Conflict of Interest.^[1,2]
• Clinically, chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid must be differentiated from the other major genital ulcer diseases (see table).
• Probable diagnosis of chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid is made if the following 4 criteria are met MET Preoperative Care:^[2,3]
  • ≥ 1 painful ulcer(s) are present.
  • Symptoms and signs match that of a typical chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid lesion.
  • Negative PCR PCR Polymerase chain reaction (PCR) is a technique that amplifies DNA fragments exponentially for analysis. The process is highly specific, allowing for the targeting of specific genomic sequences, even with minuscule sample amounts. The PCR cycles multiple times through 3 phases: denaturation of the template DNA, annealing of a specific primer to the individual DNA strands, and synthesis/elongation of new DNA molecules. Polymerase Chain Reaction (PCR) test for HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2
  • No evidence of Treponema pallidum Treponema pallidum The causative agent of venereal and non-venereal syphilis as well as yaws. Treponema (darkfield microscopy or serologic testing)

Management

Management may vary depending on practice location. The following information is based on US and European recommendations; however, please review your local guidelines.

General principles^[1–4,8]

• Disease course and treatment:
  • Lesion(s) can spontaneously resolve within 3 months but can be complicated by lymphadenitis Lymphadenitis Inflammation of the lymph nodes. Peritonsillar Abscess and suppurative buboes Buboes Chancroid.
  • Antimicrobial therapy is the mainstay of treatment to avoid the formation of buboes Buboes Chancroid.
  • With treatment:^[2,3]
    • Ulcers should improve symptomatically within 3 days and objectively within 7 days.
    • Large ulcers may require > 2 weeks to fully resolve.
    • Lymphadenopathy Lymphadenopathy Lymphadenopathy is lymph node enlargement (> 1 cm) and is benign and self-limited in most patients. Etiologies include malignancy, infection, and autoimmune disorders, as well as iatrogenic causes such as the use of certain medications. Generalized lymphadenopathy often indicates underlying systemic disease. Lymphadenopathy is slower to resolve and may require drainage.
• Additional recommendations:
  • Patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship must be screened for other STDs, including HIV HIV Anti-HIV Drugs:^[1,3]
    • Consider offering preexposure prophylaxis Prophylaxis Cephalosporins to patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship who test negative for HIV HIV Anti-HIV Drugs but are deemed to be at increased risk for infection.^[2]
  • Unprotected sexual intercourse should be avoided during treatment (until the ulcers have resolved).
  • Sexual partners (from the 10 days preceding the onset of the patient’s symptoms) should also be treated regardless of symptoms.^[2,3]
• Follow-up:^[2,3]
  • Patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship should be reexamined in 3–7 days (after starting antibiotics)
  • If no improvement, consider:
    • Alternative diagnosis
    • Concurrent HIV HIV Anti-HIV Drugs
    • Failure to adhere to medication regimen
    • Antimicrobial resistance Resistance Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow. Ventilation: Mechanics of Breathing

Medical management^[8]

• 1st-line treatment options:^[2–4]
  • Azithromycin Azithromycin A semi-synthetic macrolide antibiotic structurally related to erythromycin. It has been used in the treatment of Mycobacterium avium intracellulare infections, toxoplasmosis, and cryptosporidiosis. Macrolides and Ketolides 1 g orally by mouth as a single dose OR 
  • Ceftriaxone Ceftriaxone A broad-spectrum cephalosporin antibiotic and cefotaxime derivative with a very long half-life and high penetrability to meninges, eyes and inner ears. Cephalosporins 250 mg IM as a single dose
  • Advantages of both options:
    • Increased compliance Compliance Distensibility measure of a chamber such as the lungs (lung compliance) or bladder. Compliance is expressed as a change in volume per unit change in pressure. Veins: Histology, as they are administered as a single-dose regimen
    • Safe for pregnant women
• Alternatives:^[2–4]
  • Ciprofloxacin Ciprofloxacin A broad-spectrum antimicrobial carboxyfluoroquinoline. Fluoroquinolones 500 mg by mouth 2 times daily x 3 days
  • Erythromycin Erythromycin A bacteriostatic antibiotic macrolide produced by streptomyces erythreus. Erythromycin a is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50s ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins. Macrolides and Ketolides 500 mg by mouth 3–4 times daily x 7 days (more difficult dosing schedule)
• Empiric treatment for HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2 and/or syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis is also recommended (as they are more common and coinfections may exist). The WHO recommends same-day treatment for:^[1]
  • HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2 (typically with acyclovir Acyclovir A guanosine analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes. Herpes Zoster (Shingles) or valacyclovir Valacyclovir A prodrug of acyclovir that is used in the treatment of herpes zoster and herpes simplex virus infection of the skin and mucous membranes, including genital herpes. Herpes Zoster (Shingles)) when:
    • Ulcers are vesicular and painful
    • The patient has a history of recurrent ulcers in the same location
  • Syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis (with benzathine penicillin Penicillin Rheumatic Fever G) when:
    • Ulcers are painless
    • The patient has not been treated for syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis within the past 3 months

Surgical management^[3,4]

• Incision and drainage Incision And Drainage Chalazion of suppurative buboes Buboes Chancroid
• Needle aspiration Needle aspiration Using fine needles (finer than 22-gauge) to remove tissue or fluid specimens from the living body for examination in the pathology laboratory and for disease diagnosis. Peritonsillar Abscess can be performed, but patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship may need repeat aspirations.
• Without treatment, fistulous tracts and deep tissue destruction can occur.

Differential Diagnosis

• Herpes simplex Herpes Simplex A group of acute infections caused by herpes simplex virus type 1 or type 2 that is characterized by the development of one or more small fluid-filled vesicles with a raised erythematous base on the skin or mucous membrane. It occurs as a primary infection or recurs due to a reactivation of a latent infection. Congenital TORCH Infections: common STD caused by HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2 type 1 Type 1 Spinal Muscular Atrophy or 2. Prodromal symptoms often precede clusters of painful and fluid-filled vesicles Vesicles Female Genitourinary Examination on an erythematous base. These vesicles Vesicles Female Genitourinary Examination eventually form ulcers, which can coalesce. Lymphadenopathy Lymphadenopathy Lymphadenopathy is lymph node enlargement (> 1 cm) and is benign and self-limited in most patients. Etiologies include malignancy, infection, and autoimmune disorders, as well as iatrogenic causes such as the use of certain medications. Generalized lymphadenopathy often indicates underlying systemic disease. Lymphadenopathy, dysuria Dysuria Painful urination. It is often associated with infections of the lower urinary tract. Urinary Tract Infections (UTIs), and severe neuralgia can occur. The diagnosis is generally clinical but confirmed with PCR PCR Polymerase chain reaction (PCR) is a technique that amplifies DNA fragments exponentially for analysis. The process is highly specific, allowing for the targeting of specific genomic sequences, even with minuscule sample amounts. The PCR cycles multiple times through 3 phases: denaturation of the template DNA, annealing of a specific primer to the individual DNA strands, and synthesis/elongation of new DNA molecules. Polymerase Chain Reaction (PCR) and serologic testing. Management includes antiviral Antiviral Antivirals for Hepatitis B therapy.
• Syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis: this STD is caused by T. pallidum and has 4 clinical stages. Primary syphilis Primary Syphilis Syphilis begins with a solitary painless ulcer on the genitals ( chancre Chancre The primary sore of syphilis, a painless indurated, eroded papule, occurring at the site of entry of the infection. Syphilis). Progression to secondary syphilis Secondary Syphilis Syphilis manifests as a generalized maculopapular Maculopapular Dermatologic Examination rash Rash Rocky Mountain Spotted Fever, which includes the palms and soles. The development of tertiary syphilis Tertiary Syphilis Syphilis can cause severe neurologic ( neurosyphilis Neurosyphilis Infections of the central nervous system caused by treponema pallidum which present with a variety of clinical syndromes. The initial phase of infection usually causes a mild or asymptomatic meningeal reaction. The meningovascular form may present acutely as brain infarction. The infection may also remain subclinical for several years. Late syndromes include general paresis; tabes dorsalis; meningeal syphilis; syphilitic optic atrophy; and spinal syphilis. General paresis is characterized by progressive dementia; dysarthria; tremor; myoclonus; seizures; and argyll-robertson pupils. Syphilis), cardiovascular, and/or gummatous disease. The dormant period between secondary and tertiary syphilis Tertiary Syphilis Syphilis is the latent stage Latent Stage Benign Bone Tumors. Treatment is with penicillin Penicillin Rheumatic Fever. 
• Donovanosis Donovanosis Donovanosis (also known as granuloma inguinale) is an STD caused by Klebsiella granulomatis and is mainly seen in tropical regions. The condition is characterized by chronic, progressive, ulcerating disease mostly affecting the genital region. Donovanosis: rare STD caused by Klebsiella Klebsiella Klebsiella are encapsulated gram-negative, lactose-fermenting bacilli. They form pink colonies on MacConkey agar due to lactose fermentation. The main virulence factor is a polysaccharide capsule. Klebsiella pneumoniae is the most important pathogenic species. Klebsiella granulomatis. The progressive, nodular genital lesions can form into painless ulcerations, which cause tissue damage. Lymphadenopathy Lymphadenopathy Lymphadenopathy is lymph node enlargement (> 1 cm) and is benign and self-limited in most patients. Etiologies include malignancy, infection, and autoimmune disorders, as well as iatrogenic causes such as the use of certain medications. Generalized lymphadenopathy often indicates underlying systemic disease. Lymphadenopathy is not common. The diagnosis is with microscopic findings of Donovan bodies Donovan Bodies Donovanosis from the lesion. Management involves antibiotics, such as macrolides Macrolides Macrolides and ketolides are antibiotics that inhibit bacterial protein synthesis by binding to the 50S ribosomal subunit and blocking transpeptidation. These antibiotics have a broad spectrum of antimicrobial activity but are best known for their coverage of atypical microorganisms. Macrolides and Ketolides, tetracyclines Tetracyclines Tetracyclines are a class of broad-spectrum antibiotics indicated for a wide variety of bacterial infections. These medications bind the 30S ribosomal subunit to inhibit protein synthesis of bacteria. Tetracyclines cover gram-positive and gram-negative organisms, as well as atypical bacteria such as chlamydia, mycoplasma, spirochetes, and even protozoa. Tetracyclines, and trimethoprim-sulfamethoxazole.
• Lymphogranuloma venereum Lymphogranuloma venereum Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of Chlamydia trachomatis. It is a sexually transmitted disease in the U.S. But is more widespread in developing countries. It is distinguished from granuloma venereum, which is caused by calymmatobacterium granulomatis. Chlamydial Infections: STD caused by 3 strains of Chlamydia trachomatis Chlamydia trachomatis Type species of Chlamydia causing a variety of ocular and urogenital diseases. Chlamydia. Patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship may have a small, self-limited genital ulcer, followed by painful inguinal and/or femoral lymphadenopathy Lymphadenopathy Lymphadenopathy is lymph node enlargement (> 1 cm) and is benign and self-limited in most patients. Etiologies include malignancy, infection, and autoimmune disorders, as well as iatrogenic causes such as the use of certain medications. Generalized lymphadenopathy often indicates underlying systemic disease. Lymphadenopathy. Diagnosis is clinical. Lymphogranuloma venereum Lymphogranuloma venereum Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of Chlamydia trachomatis. It is a sexually transmitted disease in the U.S. But is more widespread in developing countries. It is distinguished from granuloma venereum, which is caused by calymmatobacterium granulomatis. Chlamydial Infections can be differentiated from chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid by identifying C. trachomatis on PCR PCR Polymerase chain reaction (PCR) is a technique that amplifies DNA fragments exponentially for analysis. The process is highly specific, allowing for the targeting of specific genomic sequences, even with minuscule sample amounts. The PCR cycles multiple times through 3 phases: denaturation of the template DNA, annealing of a specific primer to the individual DNA strands, and synthesis/elongation of new DNA molecules. Polymerase Chain Reaction (PCR) testing from the ulcer. Although PCR PCR Polymerase chain reaction (PCR) is a technique that amplifies DNA fragments exponentially for analysis. The process is highly specific, allowing for the targeting of specific genomic sequences, even with minuscule sample amounts. The PCR cycles multiple times through 3 phases: denaturation of the template DNA, annealing of a specific primer to the individual DNA strands, and synthesis/elongation of new DNA molecules. Polymerase Chain Reaction (PCR) testing can help with diagnosis, the availability of this testing is limited. Management involves tetracyclines Tetracyclines Tetracyclines are a class of broad-spectrum antibiotics indicated for a wide variety of bacterial infections. These medications bind the 30S ribosomal subunit to inhibit protein synthesis of bacteria. Tetracyclines cover gram-positive and gram-negative organisms, as well as atypical bacteria such as chlamydia, mycoplasma, spirochetes, and even protozoa. Tetracyclines or erythromycin Erythromycin A bacteriostatic antibiotic macrolide produced by streptomyces erythreus. Erythromycin a is considered its major active component. In sensitive organisms, it inhibits protein synthesis by binding to 50s ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins. Macrolides and Ketolides.
• Noninfectious ulcers: 
  • Behçet’s syndrome: Manifests with painful, recurrent oral and urogenital aphthous ulcers. Other manifestations include ocular disease, cutaneous lesions, arthritis Arthritis Acute or chronic inflammation of joints. Osteoarthritis, and GI, vascular, and neurologic symptoms. Management is complex and based on presentation.
  • Lipschütz ulcers: Most common in adolescent girls and young women. These ulcers are non–sexually transmitted ulcers that appear abruptly, are typically bilateral and painful, and may include prodromal symptoms (so they are often confused with HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2, which must be ruled out). Lipschütz ulcers are thought to be an immune response to recent infections Infections Invasion of the host organism by microorganisms or their toxins or by parasites that can cause pathological conditions or diseases. Chronic Granulomatous Disease such as EBV EBV Epstein-barr virus (EBV) is a linear, double-stranded DNA virus belonging to the herpesviridae family. This highly prevalent virus is mostly transmitted through contact with oropharyngeal secretions from an infected individual. The virus can infect epithelial cells and B lymphocytes, where it can undergo lytic replication or latency. Epstein-Barr Virus or CMV. Ulcers resolve spontaneously within 6 weeks. Management is supportive, with sitz baths, topical anesthetics Anesthetics Agents that are capable of inducing a total or partial loss of sensation, especially tactile sensation and pain. They may act to induce general anesthesia, in which an unconscious state is achieved, or may act locally to induce numbness or lack of sensation at a targeted site. Anesthesiology: History and Basic Concepts, and oral analgesics. Scarring Scarring Inflammation is uncommon, and the lesions do not recur.
  • Other causes:
    • Crohn’s disease
    • Genital neoplasms Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. Benign Bone Tumors
    • Trauma

Practical application in the clinic: Checklist for patients Patients Individuals participating in the health care system for the purpose of receiving therapeutic, diagnostic, or preventive procedures. Clinician–Patient Relationship presenting with a genital ulcer^[1]

• Take a careful medical and sexual history.
• Examine the genital, anal, and oral areas.
• Perform testing for:
  • Syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis ( PCR PCR Polymerase chain reaction (PCR) is a technique that amplifies DNA fragments exponentially for analysis. The process is highly specific, allowing for the targeting of specific genomic sequences, even with minuscule sample amounts. The PCR cycles multiple times through 3 phases: denaturation of the template DNA, annealing of a specific primer to the individual DNA strands, and synthesis/elongation of new DNA molecules. Polymerase Chain Reaction (PCR) from lesion and serologic treponemal and/or nontreponemal tests)
  • Herpes simplex Herpes Simplex A group of acute infections caused by herpes simplex virus type 1 or type 2 that is characterized by the development of one or more small fluid-filled vesicles with a raised erythematous base on the skin or mucous membrane. It occurs as a primary infection or recurs due to a reactivation of a latent infection. Congenital TORCH Infections virus Virus Viruses are infectious, obligate intracellular parasites composed of a nucleic acid core surrounded by a protein capsid. Viruses can be either naked (non-enveloped) or enveloped. The classification of viruses is complex and based on many factors, including type and structure of the nucleoid and capsid, the presence of an envelope, the replication cycle, and the host range. Virology (NAAT from lesion)
  • Consider other ulcerative diseases, including chancroid Chancroid Chancroid is a highly transmissible STD caused by Haemophilus ducreyi. The disease presents with painful ulcer(s) on the genital tract (termed chancroid or “soft chancre”). Up to 50% of patients will develop painful inguinal lymphadenopathy. Chancroid (painful), lymphogranuloma venereum Lymphogranuloma venereum Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of Chlamydia trachomatis. It is a sexually transmitted disease in the U.S. But is more widespread in developing countries. It is distinguished from granuloma venereum, which is caused by calymmatobacterium granulomatis. Chlamydial Infections (painful), and donovanosis Donovanosis Donovanosis (also known as granuloma inguinale) is an STD caused by Klebsiella granulomatis and is mainly seen in tropical regions. The condition is characterized by chronic, progressive, ulcerating disease mostly affecting the genital region. Donovanosis (painless).
• Provide same-day treatment for syphilis Syphilis Syphilis is a bacterial infection caused by the spirochete Treponema pallidum pallidum (T. p. pallidum), which is usually spread through sexual contact. Syphilis has 4 clinical stages: primary, secondary, latent, and tertiary. Syphilis and/or HSV HSV Herpes simplex virus (HSV) is a double-stranded DNA virus belonging to the family Herpesviridae. Herpes simplex virus commonly causes recurrent infections involving the skin and mucosal surfaces, including the mouth, lips, eyes, and genitals. Herpes Simplex Virus 1 and 2 (most likely diagnoses) based on history, point-of-care testing, and clinical findings.
• Screen for HIV HIV Anti-HIV Drugs and other STIs STIs Sexually transmitted infections (STIs) or sexually transmitted diseases (STDs) are infections that spread either by vaginal intercourse, anal sex, or oral sex. Symptoms and signs may include vaginal discharge, penile discharge, dysuria, skin lesions (e.g., warts, ulcers) on or around the genitals, and pelvic pain. Some infections can lead to infertility and chronic debilitating disease. Sexually Transmitted Infections (STIs) (e.g., chlamydia Chlamydia Chlamydiae are obligate intracellular gram-negative bacteria. They lack a peptidoglycan layer and are best visualized using Giemsa stain. The family of Chlamydiaceae comprises 3 pathogens that can infect humans: Chlamydia trachomatis, Chlamydia psittaci, and Chlamydia pneumoniae. Chlamydia, gonorrhea Gonorrhea Gonorrhea is a sexually transmitted infection (STI) caused by the gram-negative bacteria Neisseria gonorrhoeae (N. gonorrhoeae). Gonorrhea may be asymptomatic but commonly manifests as cervicitis or urethritis with less common presentations such as proctitis, conjunctivitis, or pharyngitis. Gonorrhea).
• Address safe sex Sex The totality of characteristics of reproductive structure, functions, phenotype, and genotype, differentiating the male from the female organism. Gender Dysphoria, abstinence during and after treatment, and partner treatment.
• Adjust management based on test results when they become available.