Open AccessAmyloidosis cutis dyschromica: A rare reticulate pigmentary dermatosis
Author(s) -
Shyam Verma,
Rajiv Joshi
Publication year - 2015
Publication title -
indian journal of dermatology/indian journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.395
H-Index - 36
eISSN - 1998-3611
pISSN - 0019-5154
DOI - 10.4103/0019-5154.160491
Subject(s) - hypopigmentation , medicine , hyperpigmentation , dermatology , amyloidosis , cutis , reticulate , pigmentation disorder , papillary dermis , dermis , pathology , macroglossia , botany , tongue , biology
We are reporting a rare case of amyloidosis cutis dyschromica in a 41-year-old man. This is a rare form of primary cutaneous amyloidosis characterized by reticulate pigmentation with hypopigmented and hyperpigmented macules, onset in childhood, familial tendency in some, occasional mild itching and deposition of amyloid in the papillary dermis. Our case also had multiple bilaterally symmetrical hyperpigmented keratotic papules abutting the axillary vault resembling those seen in Dowling-Deogs disease. The other unusual feature in this patient was the strong family history of vitiligo, which we are unable to explain. We have also tried to explain the mechanism leading to the hyperpigmentation and hypopigmentation in amyloidosis cutis dyschromica.