Introduction: leprosy is a chronic infectious mycobacterial disease caused by M. leprae. It primarily involves the skin and nerves, presenting with skin lesions and nerve enlargement. The skin lesions vary from hypopigmented, anesthetic macules/plaques to erythematous papules, plaques, and nodules, depending upon the type of leprosy.Hyperpigmented lesions in leprosy are rarely reported. Although hypopigmented lesions are commonly seen, perilesional hypopigmentation is a rare occurrence in leprosy. Perilesional hypopigmentation is seen as Woronoff’s ring around resolving lesions of psoriasis. A similar phenomenon called the halo phenomenon is associated with various skin tumors.
Case Presentation: we describe a rare presentation of a leprosy case presenting with hyperpigmented lesions surrounded by a perilesional hypopigmented rim.
BT - Hansenologia Internationalis: hanseníase e outras doenças infecciosas DO - 10.47878/hi.2024.v49.40192 LA - ENG M3 - Case Report N2 -Introduction: leprosy is a chronic infectious mycobacterial disease caused by M. leprae. It primarily involves the skin and nerves, presenting with skin lesions and nerve enlargement. The skin lesions vary from hypopigmented, anesthetic macules/plaques to erythematous papules, plaques, and nodules, depending upon the type of leprosy.Hyperpigmented lesions in leprosy are rarely reported. Although hypopigmented lesions are commonly seen, perilesional hypopigmentation is a rare occurrence in leprosy. Perilesional hypopigmentation is seen as Woronoff’s ring around resolving lesions of psoriasis. A similar phenomenon called the halo phenomenon is associated with various skin tumors.
Case Presentation: we describe a rare presentation of a leprosy case presenting with hyperpigmented lesions surrounded by a perilesional hypopigmented rim.
PB - Instituto Lauro de Souza Lima PY - 2024 SP - 1 EP - 7 T2 - Hansenologia Internationalis: hanseníase e outras doenças infecciosas TI - Hyperpigmented macules surrounded by hypopigmented rim in a case of lepromatous leprosy TT - an atypical presentation UR - https://periodicos.saude.sp.gov.br/plugins/generic/pdfJsViewer/pdf.js/web/viewer.html?file=https%3A%2F%2Fperiodicos.saude.sp.gov.br%2Fhansenologia%2Farticle%2Fdownload%2F40192%2F38534%2F51349#page=3&zoom=auto,-244,721 VL - 49 SN - 1982-5161 ER -