title: Enlarging scalp nodule. Proliferating trichilemmal cyst (PTC).
authors.affiliation: Medical University of South Carolina, Charleston, USA.
authors.forename: S M
authors.initials: SM
authors.lastname: Bulengo-Ransby
authors.forename: C
authors.initials: C
authors.lastname: Johnson
authors.forename: J S
authors.initials: JS
authors.lastname: Metcalf
mesh_terms: D004814:Epidermal Cyst / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012536:Scalp Dermatoses / Q000473:pathology*; D012883:Skin Ulcer / Q000473:pathology