title: Bullous appearance of pilomatricoma.
abstract: BACKGROUND
  Pilomatricomas, which are usually solitary, firm to hard tumors that are covered by normal skin, rarely show a bullous appearance.
  
  
  OBJECTIVE
  To discuss, through a case report, the clinical and histopathologic characteristics of bullous pilomatricomas.
  
  
  METHODS
  A 15-year-old boy presented with a firm, well-defined tumor on his right arm that showed dark-blue discoloration and bullous formation over it.
  
  
  RESULTS
  Excisional biopsy was performed, and histopathologic examination confirmed the diagnosis of bullous pilomatricoma.
  
  
  CONCLUSIONS
  The presence of dilated lymphatics, also seen in our patient, is a common feature of bullous pilomatricomas.
authors.affiliation: Department of Dermatology, Dokuz Eylül University, Izmir, Turkey. emel.fetil@deu.edu.tr
authors.forename: Emel
authors.initials: E
authors.lastname: Fetil
authors.forename: M Cüneyt
authors.initials: MC
authors.lastname: Soyal
authors.forename: Adnan
authors.initials: A
authors.lastname: Menderes
authors.forename: Banu
authors.initials: B
authors.lastname: Lebe
authors.forename: Ali Tahsin
authors.initials: AT
authors.lastname: Güneş
authors.forename: Sebnem
authors.initials: S
authors.lastname: Ozkan
mesh_terms: D000293:Adolescent; D001706:Biopsy; D001768:Blister / Q000473:pathology*; D006201:Hair Diseases / Q000473:pathology*; D006801:Humans; D008297:Male; D018296:Pilomatrixoma / Q000473:pathology*; D012867:Skin / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*