Diagnosis: Chancroid (Haemophilus ducreyi)
A 32-year-old male presents with a painful genital ulcer and significant inguinal lymphadenopathy lasting 10 days. The ulcer is described as soft, with a necrotic base and a purulent exudate. This case highlights the clinical features and management of a common but often overlooked sexually transmitted infection.
A 32-year-old male presents with a 10-day history of a painful genital ulcer accompanied by enlarged inguinal lymph nodes. On examination, a solitary, soft, and irregular ulcer with a necrotic base is noted on the genital area, surrounded by erythema and purulent discharge. The inguinal lymphadenopathy is prominent, with several nodes measuring up to 3 cm in diameter.Location: Ulcer located on the genital region.Appearance: Soft, irregular, and necrotic ulcer.Discharge: Purulent exudate present.Lymphadenopathy: Significant, tender inguinal lymph nodes.Systemic Symptoms: No fever or systemic illness reported.
The patient reports the onset of the ulcer approximately 10 days prior to presentation, with no known triggers such as new sexual partners or recent travel. He denies any prior treatment for this condition. His sexual history includes multiple partners and inconsistent condom use. There is no significant past medical history, and he has no known drug allergies. He is currently not on any medications.Onset: Symptoms began 10 days ago.Triggers: No recent sexual contacts reported.Prior Treatments: No previous topical or systemic treatments attempted.Sexual History: Multiple partners, inconsistent condom use.Past Medical History: No significant medical history.Social History: Non-smoker, denies drug use, drinks alcohol socially.
Acute / First-Line ManagementAzithromycin: 1 g orally in a single dose.Ceftriaxone: 250 mg intramuscularly in a single dose.Supportive Care: Pain management and wound care.Workup and Diagnostic ConfirmationCulture: Ulcer exudate should be cultured for Haemophilus ducreyi.Serology: Testing for other STIs (e.g., syphilis, HIV) is recommended.Clinical Diagnosis: Based on characteristic clinical findings and exclusion of other ulcerative conditions.Long-Term ManagementFollow-Up: Re-evaluation within 1 week to assess treatment response.Partner Notification: Encourage partners to be tested and treated as necessary.Prevention: Counseling on safe sex practices and consistent condom use.
Syphilis: Characterized by a single painless ulcer (chancre) and systemic symptoms; serologic testing is definitive.Genital Herpes: Presents with painful vesicles and ulcers, often accompanied by systemic symptoms; PCR or serology confirms.Granuloma Inguinale: Caused by Klebsiella granulomatis, features painless ulcers and extensive scarring; biopsy may be required for diagnosis.Lymphogranuloma Venereum: Typically presents with genital ulcer and significant lymphadenopathy due to Chlamydia trachomatis; serologic testing aids diagnosis.Behçet's Disease: Can cause recurrent genital ulcers; systemic involvement and eye symptoms help differentiate.Non-infectious Ulcerative Conditions: Such as fixed drug eruptions or inflammatory bowel disease-related ulcers; history and biopsy may clarify.Vasculitis: Can present with ulcers; associated systemic symptoms and lab findings assist in diagnosis.
High-Yield PearlsClinical Presentation: Painful genital ulcers with suppurative lymphadenopathy are characteristic of chancroid.Diagnosis: Diagnosis is clinical but can be confirmed with culture of ulcer exudate.First-Line Treatment: Azithromycin or ceftriaxone is effective in treating chancroid.STI Screening: Patients should be screened for other sexually transmitted infections simultaneously.Partner Management: Prompt partner notification and treatment are essential to prevent reinfection.Chancroid is a treatable cause of genital ulcers; early recognition and management are crucial to prevent complications and transmission.
Tags: chancroid, Haemophilus ducreyi, STI