**Question:** A patient has multiple necrotic ulcers over glans penis with tender inguinal lymphadenopathy. The likely diagnosis is -

A. Human Papillomavirus (HPV) infection
B. Genital Herpes Simplex Virus (HSV) infection
C. Syphilis
D. Granuloma inguinale

**Correct Answer:** D. Granuloma inguinale

**Core Concept:**
Granuloma inguinale, also known as Kalazarkeiser's disease, is a sexually transmitted infection caused by the bacterium Klebsiella granulomatis. It primarily affects the genital area, leading to painful ulcers, lymphadenopathy, and regional lymphadenitis. The bacterium is transmitted through sexual contact and can lead to the formation of granulomas, which are non-tender, firm, and multiple in number.

**Why the Correct Answer is Right:**
In this case, the patient presents with necrotic ulcers over the glans penis and tender inguinal lymphadenopathy, which are characteristic features of Granuloma inguinale. Unlike other options, Granuloma inguinale exhibits these specific findings.

**Why Each Wrong Option is Incorrect:**
A. Human Papillomavirus (HPV) infection: HPV primarily causes warts, particularly condylomata acuminata, and does not typically present with necrotic ulcers and tender lymphadenopathy. HPV-induced lesions are typically non-necrotizing and are usually asymptomatic.

B. Genital Herpes Simplex Virus (HSV) infection: Genital HSV infection presents with painful ulcers, which are typically painful and grouped, unlike necrotic ulcers seen in Granuloma inguinale. Additionally, HSV infection does not cause tender lymphadenopathy.

C. Syphilis: Syphilis typically presents with a primary chancre followed by secondary syphilis with generalized lymphadenopathy. Although granulomatous lymphadenopathy can be seen in syphilis, the necrotic ulcers and absence of tender lymphadenopathy are not typical findings for syphilis.

**Clinical Pearl:**
Granuloma inguinale is a sexually transmitted infection caused by Klebsiella granulomatis, which is endemic in India and Southeast Asia. The disease is characterized by necrotic ulcers and tender lymphadenopathy in the groin region. Diagnosis is typically confirmed by tissue culture, polymerase chain reaction (PCR), or serology. Treatment involves a combination of antibiotics like doxycycline and streptomycin for 2-4 weeks, depending on the severity of the infection. Early treatment can prevent severe complications like glomerulonephritis, endarteritis obliterans, and blindness. Prompt diagnosis and treatment are essential as the disease can lead to severe morbidity and mortality if not properly managed.