title: The dermatoscopic pattern of clear-cell acanthoma resembles psoriasis vulgaris.
abstract: BACKGROUND
  Dermatoscopy (dermoscopy, epiluminescence microscopy) is used for the early detection of malignant tumors and avoidance of unnecessary excisions of benign skin tumors.
  
  
  OBJECTIVE
  Description of the dermatoscopic pattern of clear-cell acanthoma.
  
  
  METHODS
  Video dermatoscopy at 20-fold magnification of a clear-cell acanthoma and psoriasis vulgaris.
  
  
  RESULTS
  Homogeneous, symmetrically or bunch-like arranged, pinpoint-like capillaries were seen in the clear-cell acanthoma and in psoriasis vulgaris.
  
  
  CONCLUSIONS
  The dermatoscopic psoriasis-like pattern of clear-cell acanthoma is a diagnostic clue which may help the clinician to identify this benign epidermal tumor and to differentiate it from other benign and malignant tumors of the skin.
authors.affiliation: Department of Dermatology, University of Tübingen, Germany. a.blum@derma.de
authors.forename: A
authors.initials: A
authors.lastname: Blum
authors.forename: G
authors.initials: G
authors.lastname: Metzler
authors.forename: J
authors.initials: J
authors.lastname: Bauer
authors.forename: G
authors.initials: G
authors.lastname: Rassner
authors.forename: C
authors.initials: C
authors.lastname: Garbe
mesh_terms: D002196:Capillaries / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D006965:Hyperplasia; D008297:Male; D008853:Microscopy; D008875:Middle Aged; D011565:Psoriasis / Q000473:pathology*; D012867:Skin / Q000098:blood supply / Q000473:pathology*; D012871:Skin Diseases / Q000473:pathology*; D014741:Video Recording