title: Fine needle aspiration cytology of dermatofibrosarcoma protuberans presenting as a breast mass. A case report.
abstract: BACKGROUND
  Dermatofibrosarcoma protuberans (DFSP) is an uncommon cutaneous soft tissue neoplasm with a tendency to recur but rarely metastasize. It occurs at almost any site but usually in the trunk and extremities. DFSP mimicking a primary breast lesion has not been reported before.
  
  
  METHODS
  A 30-year-old female presented with an eight-month history of a breast mass that was aspirated, revealing a spindle cell neoplasm. The diagnosis of DFSP was made on excisional biopsy.
  
  
  CONCLUSIONS
  The diagnosis of DFSP may be problematic, especially when it presents clinically as a primary breast lesion.
authors.affiliation: Department of Pathology, Jacobi Medical Center, Department of Surgery, Albert Einstein College of Medicine, Bronx, New York, USA.
authors.forename: Sui Y
authors.initials: SY
authors.lastname: Zee
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.forename: Cynthia M
authors.initials: CM
authors.lastname: Jones
authors.forename: Maria A
authors.initials: MA
authors.lastname: Abadi
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D001940:Breast / Q000473:pathology*; D018223:Dermatofibrosarcoma / Q000473:pathology*; D005260:Female; D006801:Humans; D012509:Sarcoma / Q000175:diagnosis / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*