title: Two perplexing skin tumors: microcystic adnexal carcinoma and keratoacanthoma.
abstract: Microcystic adnexal carcinoma and keratoacanthoma have a marked predilection for the skin of the head and neck. The adnexal carcinoma continues to be underrecognized, and the consequences for the patient are locally aggressive recurrences. The keratoacanthoma, on the other hand, may be inappropriately overdiagnosed, causing squamous cell carcinoma of the skin to be missed. In the instance of the solitary keratoacanthoma a conservative complete excision is recommended.
authors.affiliation: Department of Pathology, University of Texas M.D. Anderson Cancer Center, Houston.
authors.forename: J G
authors.initials: JG
authors.lastname: Batsakis
authors.forename: A K
authors.initials: AK
authors.lastname: el-Naggar
authors.forename: R S
authors.initials: RS
authors.lastname: Weber
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D018280:Carcinoma, Skin Appendage / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007636:Keratoacanthoma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery