Hidroacanthoma simplex(HAS) is a rare skin appendage tumor and is recognized as an intraepidermal variant of poroma. Pigmented HAS is an extremely rare variant with dendritic melanocytes and/or melanin pigment in the ...Hidroacanthoma simplex(HAS) is a rare skin appendage tumor and is recognized as an intraepidermal variant of poroma. Pigmented HAS is an extremely rare variant with dendritic melanocytes and/or melanin pigment in the tumor cells and a few cases of pigmented HAS have been reported in the English literature. We herein report a case of pigmented HAS and discuss the clinicopathological features of pigmented HAS and the pitfall in the diagnosis of black lesions.展开更多
文摘Hidroacanthoma simplex(HAS) is a rare skin appendage tumor and is recognized as an intraepidermal variant of poroma. Pigmented HAS is an extremely rare variant with dendritic melanocytes and/or melanin pigment in the tumor cells and a few cases of pigmented HAS have been reported in the English literature. We herein report a case of pigmented HAS and discuss the clinicopathological features of pigmented HAS and the pitfall in the diagnosis of black lesions.
