title: A case of porocarcinoma from pre-existing hidroacanthoma simplex: need of early excision for hidroacanthoma simplex?
abstract: BACKGROUND
  Hidroacanthoma simplex (HAS) is an uncommon eccrine neoplasm of the skin. It is a benign neoplasm, but some cases of malignant change were reported in the literature.
  
  
  OBJECTIVE
  To describe a rare case of porocarcinoma in a relatively short period from pre-existing HAS on the abdomen.
  
  
  METHODS
  Wide local excision was performed on this neoplasm.
  
  
  RESULTS
  There was no recurrence for 72 months after wide excision. CONCLUSION. : We recommend an early excision and careful attention in the case of HAS because of its potential malignant change.
authors.affiliation: Department of Dermatology, Pusan National University, Busan, Korea.
authors.forename: Jae-Bong
authors.initials: JB
authors.lastname: Lee
authors.forename: Chang-Keun
authors.initials: CK
authors.lastname: Oh
authors.forename: Ho-Sun
authors.initials: HS
authors.lastname: Jang
authors.forename: Mun-Bum
authors.initials: MB
authors.lastname: Kim
authors.forename: Bong-Seok
authors.initials: BS
authors.lastname: Jang
authors.forename: Kyung-Sool
authors.initials: KS
authors.lastname: Kwon
mesh_terms: D000005:Abdomen; D018250:Acrospiroma / Q000473:pathology* / Q000601:surgery; D006607:Adenoma, Sweat Gland / Q000473:pathology* / Q000601:surgery; D000368:Aged; D002471:Cell Transformation, Neoplastic / Q000473:pathology*; D006801:Humans; D008297:Male; D009375:Neoplasms, Glandular and Epithelial / Q000473:pathology* / Q000601:surgery; D013544:Sweat Gland Neoplasms / Q000473:pathology* / Q000601:surgery