Dyschromatosis symmetrica hereditaria
（重定向自Reticulate acropigmentation of Dohi）
Dyschromatosis symmetrica hereditaria (also known as "Reticulate acropigmentation of Dohi," and "Symmetrical dyschromatosis of the extremities") is a rare autosomally inherited dermatosis. It is characterized by progressively pigmented and depigmented macules, often mixed in a reticulate pattern, concentrated on the dorsal extremities. It presents primarily in the Japanese, but has also been found to affect individuals from Europe, India and the Caribbean.