结节型皮肤淀粉样变性

Nodular cutaneous amyloidosis: report of two cases

报告2例结节型皮肤淀粉样变性。例1.男,61岁。右下颌蚕豆大红色斑块1年。例2.女,64岁。左腘窝两枚蚕豆至鸡蛋大的黄红色斑块30余年。皮肤组织病理检查提示表皮萎缩,真皮全层可见淡红色结节状均一物质沉积,结晶紫染色阳性。诊断为结节型皮肤淀粉样变性。

Two cases of nodular cutaneous amyloidosis are reported. Case 1. A 61-year-old man presented with a broad bean-sized, red nodule on the right side of the mandible. Case 2. A 64-year-old woman presented with two yellowish red color plaques, sized from bean to egg on the left popliteal fossa. Histopathological examination showed atrophy of the epider- mis, some reddish, deposits of homogeneous nodular substance, and lymphocytes and plasma ceils were infiltrated in the whole layer of the dermis. Crystal violet staining was positive. The diagnosis of nodular cutaneous amyloidosis was made.