黏蛋白痣10例临床病理分析

目的:探讨黏蛋白痣的临床病理特征。方法:回顾性分析2014年1月至2019年12月在中国医学科学院皮肤病医院经临床及组织病理确诊的10例黏蛋白痣患者的临床和病理资料。结果:10例黏蛋白痣均为儿童期发病，平均发病年龄6.5岁。7例皮损位于躯干，其中4例位于背部；2例位于四肢，1例躯干、四肢泛发。皮损在局部排列成线状、带状...

Clinicopathological analysis of ten cases of mucinous nevi

【Abstract】 Objective To investigate clinical and histopathological features of mucinous nevi. Methods Clinical and pathological data were collected from 10 patients with clinically and histopathologically confirmed mucinous nevi in Hospital of Dermatology, Chinese Academy of Medical Sciences from January 2014 to December 2019, and retrospectively analyzed. Results All cases developed mucinous nevi in childhood, with an average age of onset being 6.5 years. Of the 10 patients, 7 had lesions on the trunk, among whom 4 had lesions on the back; the remaining 2 had lesions on the limbs, and 1 had generalized lesions on the trunk and limbs. The skin lesions were locally arranged in lines, bands or clusters, and skin-colored, reddish or yellow in color，with the texture varying from soft to hard. Histopathological examination showed that 10 patients presented with disordered arrangement of collagen fiber bundles in the dermis and mucin deposition at varying locations and to different degrees among them, 6 with thickened and red-stained collagen fibers in the deposition area, and the remaining 4 with sparse and decreased collagen; focal liquefaction degeneration of the basal layer was observed in 2 cases, and different amounts of mature adipose tissue in the dermis were seen in 3 cases. Conclusions Mucinous nevus pathologically manifests as mucin deposition of varying degrees among disorderedly arrangd collagen fiber bundles in the dermis, which is similar to some other diseases, and is easily misdiagnosed. Close combination of clinical and pathological features facilitates confirmed diagnosis.