title: Benign chondroid syringoma (mixed tumor of skin) on the flank with satellites: case report and literature review.
abstract: BACKGROUND
  Mixed tumor of skin (chondroid syringoma) is a rare skin tumor.
  
  
  METHODS
  We report on the rare occasion of an atypical mixed tumor of skin (chondroid syringoma) in a 71-year old Caucasian male patient.
  
  
  RESULTS
  The tumor presented as a firm subcutaneous nodule on his flank. Histopathologic investigations revealed a focally increased proliferative activity and satellites in the adipose tissue. This is in accordance with the diagnosis of an atypical chondroid syringoma. The differential diagnosis to malignant chondroid syringoma is discussed. The tumor was removed by delayed Mohs surgery.
  
  
  CONCLUSIONS
  Atypical chondroid syringoma is a very rare subtype of mixed tumor of skin. It is an important differential diagnosis to malignant chondroid syringoma of skin.
authors.affiliation: Department of Dermatology and Allergology, Academic Teaching Hospital Dresden-Friedrichstadt, Friedrichstrasse 41, 01067, Dresden, Germany, wollina-uw@khdf.de.
authors.forename: U
authors.initials: U
authors.lastname: Wollina
authors.forename: U
authors.initials: U
authors.lastname: Sturm
authors.forename: J
authors.initials: J
authors.lastname: Schönlebe
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis* / Q000601:surgery; D000273:Adipose Tissue / Q000473:pathology; D000368:Aged; D049109:Cell Proliferation; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D015580:Mohs Surgery; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis* / Q000601:surgery; D012086:Reoperation; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000601:surgery