title: Clinical, histopathological, dermatoscopic and digital microscopic features of dermatofibroma: a retrospective analysis of 200 lesions.
abstract: BACKGROUND
  Dermatology literature lacks a study investigating both histopathological and dermatoscopic features of dermatofibroma.
  
  
  OBJECTIVE
  To analyse histopathological, dermatoscopic and digital microscopic features of dermatofibromas.
  
  
  METHODS
  Two hundred dermatofibromas and 190 patients were included and retrospectively evaluated. Nine histopathological and ten dermatoscopic patterns were used to classify the lesions. We identified four different types of dermatofibroma in digital microscopy.
  
  
  RESULTS
  The mean age of the patients was 42.18 ± 13.72 years. Dermatofibroma was more common in females (67%) and the male to female ratio was 1:1.97. The most common location was leg (41%). The most frequent histopathological variant was fibrocollagenous type (49%). Grenz zone was the most common histopathological finding (89%). The most frequent digital microscopic type was type 1 (63%).
  
  
  CONCLUSIONS
  We found that palisading variant displayed only pattern 6 in dermatoscopy and cellular variant showed type 3 significantly in digital microscopy.
authors: Faculty of Medicine, Department of Dermatology, Hitit University, Çorum, Turkey.
authors: E
authors: http://orcid.org/0000-0001-8098-1686
authors: E
authors: Şenel
authors: Faculty of Medicine, Department of Pathology, Mersin University, Mersin, Turkey.
authors: Y
authors: Y
authors: Yuyucu Karabulut
authors: Faculty of Economics, Department of Public Administration, Anadolu University, Eskişehir, Turkey.
authors: S
authors: S
authors: Doğruer Şenel
mesh_terms: D000328:Adult; D046169:Dermoscopy; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D008297:Male; D008853:Microscopy; D008875:Middle Aged; D012189:Retrospective Studies; D012878:Skin Neoplasms / Q000473:pathology*