An Unusual Presentation of Co-existence of Leprosy, Anetoderma and Abdominal Tuberculosis: A Case Report

Abstract

Leprosy and Tuberculosis (TB), both significant mycobacterial infections, often affect populations with lowered specific immunity. TB is a widespread and life-threatening mycobacterial infection. Co-infection of these diseases is uncommon in routine clinical practice, adding complexity to diagnosis and treatment planning. However, instances of co-existence suggest a potential crossimmunity theory. Leprosy, known for its varied presentations, can manifest as an asymptomatic secondary presentation of anetoderma, characterised by elastinolysis-induced loose sac-like appearances. This case report presents a middle-aged man in his late 30s undergoing Anti-Tubercular Treatment (AKT) for abdominal tuberculosis, who presented with signs of Erythema Nodosum Leprosum (ENL) and small asymptomatic atrophied macules on his trunk and back in the Dermatology department. Through comprehensive history, clinical examination, slit skin smear, and biopsy, authors elucidated a rare case of co-infection of leprosy and atypical cutaneous manifestations as anetoderma, concomitant with abdominal tuberculosis.