title: Multiple granular cell tumor: a case report and review of the literature.
abstract: BACKGROUND
  Granular cell tumor was first described by Abrikossoff in 1926. It is rare and usually presents as a benign solitary lesion. Multifocal and malignant forms are known to occur.
  
  
  METHODS
  This presentation illustrates an additional case of granular cell tumor. Clinical and histological features to distinguish malignant and benign forms are presented.
  
  
  RESULTS
  Tumor can develop years after therapy for the primary lesion. Treatment recommendations are presented.
  
  
  CONCLUSIONS
  Patients diagnosed with granular cell tumor require close follow-up. Radiographic evaluation for the presence of metastatic disease is necessary if a malignant variant is suspected.
authors.affiliation: Department of Surgery, UCLA Medical Center, Los Angeles, California 90095-1624, USA.
authors.forename: B V
authors.initials: BV
authors.lastname: Curtis
authors.forename: T C
authors.initials: TC
authors.lastname: Calcaterra
authors.forename: W F
authors.initials: WF
authors.lastname: Coulson
mesh_terms: D000328:Adult; D005260:Female; D016586:Granular Cell Tumor / Q000473:pathology* / Q000601:surgery; D006801:Humans; D010306:Parotid Gland / Q000601:surgery; D010307:Parotid Neoplasms / Q000473:pathology* / Q000601:surgery