title: [Leiomyosarcoma of the parotid gland].
abstract: BACKGROUND
  Primary leiomyosarcoma of the parotid gland is an extremely rare neoplasm, develops from smooth muscle cells. Its primary origin in the face and especially in the salivary glands is even more rare.
  
  
  METHODS
  A 15-year-old boy, with no prior history was hospitalized for swelling in the left parotid area having appeared 5 months before. The mass was painless and there was no facial paralysis. CT scan showed a tumoral process of mixed density in the left parotid gland. Thoracoabdominal CT scan was normal. Conservative parotidectomy was performed. The histological diagnosis was primary leiomyosarcoma of the parotid gland.
  
  
  CONCLUSIONS
  Five per cent of salivary gland primitive tumors are of mesenchymatous origin, of which 0.3 to 1.5% are sarcoma. The diagnosis of leiomyosarcoma of the parotid gland is confirmed by histological and immunohistochemical assessment. Surgery sometimes combined to radiochemotherapy seems to be the treatment of choice.
authors.affiliation: Service de chirurgie plastique et chirurgie maxillofaciale, hôpital militaire d'instruction Mohamed V, Rabat, Maroc. sihamkerrary@hotmail.fr
authors.forename: S
authors.initials: S
authors.lastname: Kerrary
authors.forename: J
authors.initials: J
authors.lastname: Abouchadi
authors.forename: H
authors.initials: H
authors.lastname: Drissi
authors.forename: K
authors.initials: K
authors.lastname: El Khatib
authors.forename: M
authors.initials: M
authors.lastname: Nassih
authors.forename: A
authors.initials: A
authors.lastname: Rzin
mesh_terms: D000293:Adolescent; D001706:Biopsy; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D010306:Parotid Gland / Q000601:surgery; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000601:surgery