Erythema necroticans: a rare reaction pattern in leprosy

K S Dhillon, Deepak Sharma, Tarunveer Singh, Nishi Tandon, Gaurav Sarin, Areeba Khan, Soni Yadav, Sweksha Srivastava


Leprosy reactions are rare expression of immunological perturbations that interrupt the usual chronic course and the clinical stability of patients with leprosy. They generally occur during anti-mycobacterial treatment and are characterized by the appearance of crops of brightly erythematous tender nodules or plaques. Erythema Necroticans (ENe) is an uncommon manifestation of Type 2 Erythema Nodosum Leprosum (ENL) reaction, encountered in lepromatous and borderline lepromatous cases of leprosy. Severe ENL can become vesicular or bullous and break-down and is termed Erythema Necroticans.


Erythema Nodosum Leprosum, Erythema Necroticans, Lucio Phenomenon

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