title: An unusual cause of a lump in the parotid gland.
abstract: We present a case of a 50-year-old man with a lump in the left parotid gland. A 4 cm soft mobile lump was identified in the left parotid gland clinically. CT of the parotid glands and neck was arranged confirming a 4 cm mass, predominantly situated within the superficial lobe anterosuperiorly but extending deep to the expected plane of the facial nerve. The positron emission tomography scan did not show distant metastasis. Complete excision of the tumour was achieved. Histological and immunohistochemical findings were consistent with Extraskeletal Ewing's sarcoma. He is undergoing chemoradiation therapy following surgery.
authors.affiliation: Royal Perth Hospital, Perth, Western Australia, Australia. parja731@yahoo.com
authors.forename: Jae Hong
authors.initials: JH
authors.lastname: Park
authors.forename: Richard
authors.initials: R
authors.lastname: Lewis
authors.forename: Hui Mei
authors.initials: HM
authors.lastname: Cheng
mesh_terms: D001706:Biopsy; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D010306:Parotid Gland / Q000473:pathology*; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed