title: Solitary trichoepithelioma: clinical, dermatoscopic and histopathological findings.
abstract: Trichoepithelioma is part of the adnexal carcinomas. It is a benign, small tumor, usually under a centimeter in diameter, which develops in the basal cells of the hair follicle.
  
  
  METHODS
  We present the case of a 30-year-old female patient, from rural area, which was hospitalized in the Clinic of Dermatology, Emergency County Hospital, Craiova, Romania, in March 2015, for the presence of a skin tumor, with round-oval shape, 0.5 cm in diameter, brownish colored, located on the left cervical region. The patient had no past medical history. The skin tumor appeared two years ago, and it was slowly increasing in size. Physical examination was in normal ranges. The dermatoscopic examination reveal a pearly white background covered with tumor islands that were oval shaped, with hyperpigmentation, centered by keratin cysts and surrounded by collagen. During hospitalization, we performed tumor biopsy. The histopathological examination showed microscopic structure of trichoepithelioma. After history taking, physical examination, dermatoscopic examination and histopathological result, our diagnosis was left cervical trichoepithelioma.
  
  
  CONCLUSIONS
  Trichoepithelioma is a rare trichogenic tumor, which appears at any age, including newborns, with potential for local recurrence. Our case report represents a classic dermatoscopic aspect of trichoepithelioma, that can have close resemblance to basal cell carcinoma and other skin adnexal tumors, clinically, dermatoscopic and histopathological.
authors.affiliation: Department of Dermatology, University of Medicine and Pharmacy of Craiova, Romania; tanaseloredanaelena@yahoo.com.
authors.forename: Loredana Elena
authors.initials: LE
authors.lastname: Stoica
authors.forename: Rucsandra Cristina
authors.initials: RC
authors.lastname: Dascălu
authors.forename: Virgil
authors.initials: V
authors.lastname: Pătraşcu
authors.forename: Raluca Niculina
authors.initials: RN
authors.lastname: Ciurea
authors.forename: Daciana Elena
authors.initials: DE
authors.lastname: Brănişteanu
authors.forename: Diana Monica
authors.initials: DM
authors.lastname: Georgescu
authors.forename: Paulina Lucia
authors.initials: PL
authors.lastname: Ciurea
mesh_terms: D000328:Adult; D018952:Antigens, CD34 / Q000378:metabolism; D001706:Biopsy; D046169:Dermoscopy / Q000379:methods*; D003937:Diagnosis, Differential; D005260:Female; D018859:Hair Follicle / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D053554:Keratin-20 / Q000378:metabolism; D009364:Neoplasm Recurrence, Local; D018294:Neoplasms, Adnexal and Skin Appendage / Q000175:diagnosis*; D009386:Neoplastic Syndromes, Hereditary / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology
chemical_list: D018952:Antigens, CD34; C507499:KRT20 protein, human; D053554:Keratin-20