title: An unusually aggressive trichoblastoma.
abstract: Trichogenic tumors are neoplasms of the hair germ cell that usually exhibit benign behavior. We describe a case of a large invasive trichoblastoma requiring Mohs micrographic surgery for its removal. Immunohistochemical studies performed demonstrate overlapping features of this trichogenic tumor with basal cell carcinoma.
authors.affiliation: Department of Medicine/Section of Dermatology, The Pennsylvania State University College of Medicine, The Milton S. Hershey Medical Center, Penn State Geisenger Health System, Hershey 17033, USA.
authors.forename: E W
authors.initials: EW
authors.lastname: Cowen
authors.forename: K F
authors.initials: KF
authors.lastname: Helm
authors.forename: E M
authors.initials: EM
authors.lastname: Billingsley
mesh_terms: D062109:Dermatologic Surgical Procedures; D005153:Facial Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D015580:Mohs Surgery; D012867:Skin / Q000378:metabolism / Q000473:pathology; D012878:Skin Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery