title: Syringocystadenocarcinoma Papilliferum in the Perianal Area.
abstract: Syringocystadenocarcinoma papilliferum (SCACP) is a very rare cutaneous adnexal neoplasm. SCACP presents histologic variability, and it is difficult to establish the diagnosis from a punch biopsy. SCACP has an overall configuration similar to that of syringocystadenoma papilliferum (SCAP). When we diagnose SCACP, the histologic features of SCAP can be contributing and immunohistochemical staining is useful. Our case shows the histologic variability of SCACP and the pitfalls of a punch biopsy for the diagnosis of SCACP.
authors.affiliation: Department of Dermatology, Tenri Hospital, Tenri, Japan.
authors.forename: Natsuko
authors.initials: N
authors.lastname: Iga
authors.affiliation: Department of Dermatology, Tenri Hospital, Tenri, Japan.
authors.forename: Hiroko
authors.initials: H
authors.lastname: Fujii
authors.affiliation: Department of Dermatology, Tenri Hospital, Tenri, Japan.
authors.forename: Toshiya
authors.initials: T
authors.lastname: Miyake
authors.affiliation: Department of Dermatology, Tenri Hospital, Tenri, Japan.
authors.forename: Mizue
authors.initials: M
authors.lastname: Ehara
authors.affiliation: Department of Dermatology, Tenri Hospital, Tenri, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kore-Eda
keywords: Adenocarcinoma; Cutaneous adnexal neoplasm; Lymph node metastasis; Pagetoid spread; Perianal area; Perianal syringocystadenocarcinoma papilliferum; Syringocystadenocarcinoma papilliferum