1. Syringomas are common appendageal tumors of intraepidermal eccrine ducts.
   摘要汗管瘤为常见之皮肤附属器官肿瘤，好犯于下眼皮及双颊。
2. Histopathologically, intraepidermal acantholysis is located at the granular layer in PF and suprabasally in PV.
   病理上，落叶性天疱疮的表层内棘层松解位于颗粒细胞层里，而寻常性天疱疮则位在基底层之上。

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