title: Porocarcinoma coexisting at a site of Bowen disease in a 63-year-old woman.
abstract: Porocarcinoma is an unusual, locally aggressive and potentially fatal neoplasm. Several cutaneous malignancies have been described in association with porocarcinoma, including squamous cell carcinoma, basal cell carcinoma and tricholemmal carcinoma. Previous reports have indicated that the occurrence of malignant tumours in combination with porocarcinoma is extremely rare, in particular with regard to Bowen disease (BD). We report an uncommon case of porocarcinoma occurring synchronously in a single BD lesion in a 63-year-old woman with multiple BD lesions. The clinical and histological findings confirmed this diagnosis.
authors.affiliation: Department of Dermatology, 251st Hospital of Chinese PLA, Zhangjiakou City, P.R. China.
authors.forename: L-Q
authors.initials: LQ
authors.lastname: Zheng
authors.forename: X-C
authors.initials: XC
authors.lastname: Han
authors.forename: Y
authors.initials: Y
authors.lastname: Huang
authors.forename: H-W
authors.initials: HW
authors.lastname: Li
authors.forename: X-D
authors.initials: XD
authors.lastname: Niu
authors.forename: J
authors.initials: J
authors.lastname: Li
mesh_terms: D001365:Axilla; D001913:Bowen's Disease / Q000473:pathology*; D003937:Diagnosis, Differential; D057090:Eccrine Porocarcinoma / Q000473:pathology*; D005260:Female; D006119:Groin; D006801:Humans; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D013544:Sweat Gland Neoplasms / Q000473:pathology*