This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
“Genital elephantiasis” is caused by 
Select and explain. 
A. Lymphogranuloma venereum, B. Chancroid, C. Syphilis, D. Rickettsia
A: Lymphogranuloma venereum
Answer: A: Lymphogranuloma venereum 
Explanation: LYMPHOGRANULOMA - VENEREUM (Lymphogranuloma inguinale, poradenitis, climatic or tropical
bubo)
- Caused by chlamydia -trachomatis - L2 (Most commonly)
- Preferred site - regional lymphnodes
- Primary lesions - painless papulovesicular lesion ** on the external genitalia
- Women - hemorrhagic proctitis with regional lymphadenitis
- Late sequelae in women leading to rectal strictures and elephantiasis of the vulva (esthiomene)**
Chancroid or soft sore is caused by Haemophilus - ducryi “School of fish” or rail rod track” appearance
- Tender nonindurated irregular ulcers on the genitalia