Periungual fibroma - 甲周纤维瘤

甲周纤维瘤 (Periungual fibroma) 是血管纤维瘤的一种亚型。甲周纤维瘤 (periungual fibroma) 形成于脚趾甲和/或手指甲的内部及下方。该疾病为良性,但可能引起疼痛,且在病变较大时更为明显。

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      References Periungual Fibroma - Case reports 28587707 
      NIH
      一位86岁女性就诊时,左脚第三趾出现一个缓慢生长、无痛的肿块,大小约为1.0×0.5×0.5 cm。经手术切除后,显微镜检查显示该真皮肿瘤呈绳状或螺旋状,由梭形细胞组成,无异常增生或有丝分裂。该病被称为甲周纤维瘤,是结缔组织的良性增生。
      An 86-year-old woman presented with a slowly growing, painless, smoothsurfaced mass on the left third toe, measuring ca. 1.0 × 0.5 × 0.5 cm). The mass was surgically resected. Histological examination revealed a storiform dermal tumor (i.e., one with a rope-like or whorled configuration) consisting of spindle cells without atypia or mitoses. This a periungual fibroma, a benign mesenchymal tumor