Conclusions Vulval and scrotal VX have identical histological features to VX at other sites such as oral cavity. The xanthoma cells may derive from the monocyte/macrophage lineage.

• 结论外阴部、阴囊VX与发生于口腔黏膜的VX临床病理学特征相似,黄色瘤样细胞来源于单核/巨噬细胞。