A rare case of chondrosarcoma arising in parotid with extension to lateral skull base

BMJ Case Rep. 2019 Dec 2;12(12):e231643. doi: 10.1136/bcr-2019-231643.

Abstract

Chondrosarcomas of head and neck region are rare. Very few cases of chondrosarcomas arising in parotid gland have been reported and none with intracranial extension. We report a case of a female presenting with a parotid swelling and a mass in external auditory canal with extradural extension to posterior cranial fossa. With a preoperative fine needle aspiration diagnosis of pleomorphic adenoma, it was excised and the histopathology came out to be low-grade myxoid chondrosarcoma. She has not received any adjuvant chemoradiotherapy and there is no evidence of recurrence at months.

Keywords: ear, nose and throat/otolaryngology; head and neck cancer; head and neck surgery.

Publication types

  • Case Reports

MeSH terms

  • Biopsy, Fine-Needle
  • Chondrosarcoma / diagnostic imaging
  • Chondrosarcoma / pathology*
  • Chondrosarcoma / surgery
  • Ear Canal / pathology
  • Female
  • Hearing Loss, Conductive / etiology
  • Humans
  • Magnetic Resonance Imaging
  • Mastoidectomy
  • Neoplasm Invasiveness
  • Parotid Neoplasms / diagnostic imaging
  • Parotid Neoplasms / pathology*
  • Parotid Neoplasms / surgery
  • Skull Base Neoplasms / diagnostic imaging
  • Skull Base Neoplasms / pathology*
  • Skull Base Neoplasms / surgery
  • Tomography, X-Ray Computed
  • Young Adult