An unusual presentation of primary cutaneous amyloidosis. Garg, Taru; Marak, Anita; Ahmed, Riaz; Chander, Ram; Jain, Manjula

Primary localized cutaneous amyloidosis refers to a group of disorders characterized by deposition of amyloid in the dermis without any systemic involvement. It comprises the following clinical types: macular, lichenoid, nodular, and biphasic. There are also rare variants such as amyloidosis cutis dyscromica and poikiloderma-like cutaneous amyloidosis. We report a case of primary cutaneous amyloidosis in a 17-year-old boy with unusual pigmentation of various patterns (reticulate and diffuse pigmentation with mottling and rippling at places) and hypopigmented atrophic macules. Our patient also had nail, oral, and mucosal pigmentation that have not been described. Amyloid deposits were shown histopathologically in both hyperpigmented and hypopigmented macules.

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