title: Mesenchymal chondrosarcoma of the temporal bone.
abstract: A 64-year-old patient with mesenchymal chondrosarcoma of the temporal bone is described. CT and MRI showed an extensive mass with calcification involving the temporal bone and extending into the middle cranial fossa and nasopharynx. The tumor was ill-defined from surrounding normal bone, and a subtotal petrosectomy was carried out. The nasopharyngeal extension was removed secondarily using an endoscope. The clinical and diagnostic aspects and management of this rare lesion are discussed.
authors.affiliation: Department of Otolaryngology, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan. yujibika@pop16.odn.ne.jp
authors.forename: Yuji
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Nakao
authors.forename: Tomayoshi
authors.initials: T
authors.lastname: Hayashi
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000532:radiotherapy; D018211:Chondrosarcoma, Mesenchymal / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000532:radiotherapy; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D013701:Temporal Bone / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000528:radiation effects; D014057:Tomography, X-Ray Computed