Lucio Phenomenon Mimicking Vasculonecrotic Erythema Nodosum Leprosum: A Case Report

    Dwi Sepfourteen, Tutty Ariani
    TLDR A man with severe leprosy developed painless ulcers and numbness, treated successfully with multiple drugs and vitamins.
    A 46-year-old man with untreated lepromatous leprosy presented with painless ulcers on his lower limbs and scrotum, surrounded by purpuric patches that became gangrenous and ulcerated over 3 weeks. He also experienced numbness in his hands and feet and hair loss in his eyelashes and eyebrows for 5 years. Bacteriological examination showed a bacterial index of 6+, and histopathology revealed flattened epidermis, lymphocyte and macrophage infiltration, endothelial proliferation, and colonization by acid-fast bacilli. The patient was diagnosed with lepromatous leprosy with Lucio’s phenomenon and treated with multiple drug therapy, methylprednisolone, and neurotrophic vitamins. Lucio’s phenomenon, which can mimic vasculonecrotic erythema nodosum leprosum, is characterized by endothelial cell colonization, epidermal necrosis, and endothelial proliferation.
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