Characteristics of Cranial Aneurysmal Bone Cyst on Computed Tomography and Magnetic Resonance Imaging

Sen-Ping Lin ； Ying-Chen Fang ； Da-Chen Chu ； Yi-Chin Chang ； Chien-I Hsu

《Journal of the Formosan Medical Association》 106卷3期 (2007/03) Pp. 255-259

https://doi.org/10.29828/JFMA.200703.0024

並列摘要

Aneurysmal bone cysts are benign bone tumors that most commonly occur in people younger than 30 years. The cysts are most often found in the metaphyses of long bones and rarely affect the skull. We present a 54-year-old woman with a rapidly enlarging mass in the left occipital region that caused tenderness for 2 weeks. Computed tomography (CT) revealed an expansile, osteolytic lesion with characteristic soapbubble appearance and fluid-fluid levels. Magnetic resonance images showed a dark rim surrounding the lesion, as well as multilocular spaces with fluid-fluid levels. The tumor was soft, fragile, and pulsatile during surgery. The patient was treated with en bloc resection of the tumor with cranioplasty. Follow-up CT 5 months later showed no evidence of recurrence.

並列關鍵字

aneurysmal bone cyst ； head and neck neoplasm ； magnetic resonance imaging ； X-ray computed tomography