Suga T, Uchida K, Goto H, Kashiwagi K, Sano M
Division of Neurosurgery, Iwate Prefectural Miyako Hospital.
No Shinkei Geka. 1994 Sep;22(9):881-5.
A rare case of parosteal osteosarcoma of the cranial vault has been reported. A 32-year-old male was admitted complaining of a hard scalp mass at the left temporoparietal region for several years. On admission he showed no neurological abnormalities. The craniogram, CT and MRI revealed a calcifying mass attached by a small stalk to the skull, and a radiolucent cleft between the tumor and the skull. On operation, the tumor proved to be hard, and it existed between the temporal muscle and the periosteum. A small tumoral attachment existed at the parietal region. The tumor was detached from the skull and the surrounding cranial bone was removed. The histological diagnosis was parosteal osteosarcoma. There have been only 12 cases of parosteal osteosarcoma of the skull reported. The pathological, neuroradiological findings and treatment of parosteal osteosarcoma were the main topics of discussion. This disease should be considered as one of the possible etiologies when a patient with a tumor of the skull is encountered.
已报告一例罕见的颅顶骨旁骨肉瘤病例。一名32岁男性因左侧颞顶区头皮硬块数年入院。入院时他无神经功能异常。颅骨X线片、CT和MRI显示一个通过小蒂附着于颅骨的钙化肿块，肿瘤与颅骨之间有一透光裂隙。手术中，肿瘤质地坚硬，位于颞肌和骨膜之间。顶区有一小的肿瘤附着处。肿瘤与颅骨分离，并切除了周围的颅骨。组织学诊断为骨旁骨肉瘤。颅骨骨旁骨肉瘤仅报告过12例。骨旁骨肉瘤的病理、神经放射学表现及治疗是主要讨论话题。遇到颅骨肿瘤患者时，应将此病视为可能的病因之一。
