Leprosy exhibits a wide spectrum of presentations, varying from the tuberculoid to the lepromatous pole, with immunologically unstable
reactional states in-between, depending on the immune status of the individual. The reactional states of leprosy itself maybe the initial presentation
of leprosy in some cases. We hereby report an untreated case of lepromatous leprosy in reaction mimicking deep fungal infection. Our patient is a
58 year old male, who presented with multiple episodes of painful raised lesions all over the body associated with fever and generalized malaise
since 2 months. Lesions that initially developed on the trunk, later progressed to involve face and bilateral extremeties, became pustular followed
by ulceration and crusting. History of signicant weight loss over the past 6 months. Cutaneous examination revealed multiple pustules, nodules
over the face, ears, trunk, abdomen, both extremeties. Multiple ulcerated plaques with necrotic crusting were also present. DDs of deep fungal
infection, and leprosy in erythema nodosum leprosum were considered . KOH mount for fungal elements came negative. Slit skin smear showed a
bacillary index of 4+. Skin biopsy from the skin nodule revealed thinned epidermis with attened rete ridges, clear grenz zone and multiple foamy
macrophages and neutrophilic inltrate in the dermis. So we conrmed it as a case of lepromatous leprosy in erythema nodosum leprosum
necroticans and as the patient had no previous evidence suggestive of leprosy it was difcult to diagnose the condition clinically. Hence it is
important to have a high index of clinical suspicion of leprosy and initiate prompt treatment to prevent further disabilities and reduce the morbidity
associated with leprosy.