Ono T, Egawa K, Kayashima K, Kitoh M
Department of Dermatology, Kumamoto University Medical School, Japan.
J Dermatol. 1991 Feb;18(2):97-103. doi: 10.1111/j.1346-8138.1991.tb03050.x.
Seven elderly Japanese men with blue macules on their upper backs are reported. Histological examination showed this pigmentation to be melanosis due to the presence of spindle-shaped or oval pigment-laden cells in the dermis. Electron microscopy revealed the cells to be compatible with dermal melanocytes. We assume that this condition belongs to the category of late onset dermal melanocytosis and is an upper back variant. This concept has not been proposed before.
报告了7名日本老年男性，他们的上背部有蓝色斑点。组织学检查显示，这种色素沉着是由于真皮中存在梭形或椭圆形的色素沉着细胞所致的黑变病。电子显微镜检查显示这些细胞与真皮黑素细胞相符。我们认为这种情况属于迟发性皮肤黑素增多症范畴，是上背部的一种变异型。此前尚未提出过这一概念。
