ABSTRACT
An 18-year-old male patient presented with brownish, sliglitly atrophic, reticulated macular lesions on the dorsal parts of hands and feet sinc childhood, which were characteristic manifestation of ret.iculate acropigmentation of Kitariura. At about thirteen years old age, he noted multiple deep brownish, freckle-like macules on the scrotum. Histopatholigic findings of a scrotal lesion were compatible with those of Dowling-Degos disease, such as epidermal acanthosis, elorga ion of rete ridges and hyperpigmentation of the prickle and basal cell layer.
Subject(s)
Adolescent , Humans , Male , Foot , Hand , Hyperpigmentation , ScrotumABSTRACT
We report two familial cases of reticulate acropigmentation of kitamura in 20-year-old male and 29-year-old female patients in which reticualte, brownish, slightly depressed pigmentation developed on acral parts of extremities and subsequently extended proximally. Characteristic pits and breaks on palms and soles were noted. Histologic findings revealed epidermal atrophy and enlongation of rete ridges with large amounts of melanin. Electron microscopic findings showed increased melanogenesis in melanocytes and numerous melanosomes and melanosome complex in keratinocytes.