title: Desmoplastic trichoepithelioma with pseudocarcinomatous hyperplasia: a report of three cases.
abstract: We report three cases of desmoplastic trichoepithelioma (DTE) with overlying pseudocarcinomatous hyperplasia. All three cases developed on the face of patients in their second decade. In spite of their young age, a diagnosis of squamous cell carcinoma was considered for each case, given the unusual juxtaposition of these two well-known simulators of malignancy. Awareness of this potential association may avert a misdiagnosis of malignancy.
authors.affiliation: Department of Dermatology, Baylor Scott and White, Temple, TX, USA.
authors.forename: Courtney
authors.initials: C
authors.lastname: McFaddin
authors.forename: Deepika
authors.initials: D
authors.lastname: Sirohi
authors.forename: Eduardo
authors.initials: E
authors.lastname: Castro-Echeverry
authors.forename: Martin P
authors.initials: MP
authors.lastname: Fernandez
mesh_terms: D000293:Adolescent; D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D002648:Child; D003937:Diagnosis, Differential; D005153:Facial Neoplasms / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D007150:Immunohistochemistry; D053554:Keratin-20 / Q000032:analysis; D008297:Male; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000378:metabolism; D000077195:Squamous Cell Carcinoma of Head and Neck; D055815:Young Adult
chemical_list: C507499:KRT20 protein, human; D053554:Keratin-20
keywords: desmoplastic; pseudocarcinomatous hyperplasia; pseudoepitheliomatous hyperplasia; trichoepithelioma