|
|||||
|
|
Cholesterol granuloma in the middle cranial fossa: report of two cases |
|
| Authors: | T Morioka K Fujii S Nishio Y Miyagi S Nagata K Hasuo K Hisashi M Fukui |
| Institution: | (1) Department of Neurosurgery, Neurological Institute, Faculty of Medicine, Kyushu University 60, 3-1-1 Maidashi, Higashi-ku, 812-82 Fukuoka, Japan;(2) Department of Radiology, Faculty of Medicine, Kyushu University, Fukuoka, Japan;(3) Department of Otolaryngology, Faculty of Medicine, Kyushu University, Fukuoka, Japan |
| Abstract: | We report two cases of cholesterol granuloma in the middle cranial fossa. On CT the lesions appeared as a nonspecific, nonenhancing soft-tissue mass with bone erosion. On MRI they were seen as areas of high signal intensity surrounded by a low-intensity peripheral zone on both T1- and T2-weighted images. Cholesterol granuloma is thought to occur when pneumatised cellsin the temporal bone become obstructed. Although this lesion usually occurs in the petrous bone, it can extend to the middle cranial fossa. The diagnosis and surgical management are discussed. |
| Keywords: | Cholesterol granuloma Magnetic resonance imaging Middle cranial fossa |
| 本文献已被 SpringerLink 等数据库收录！ | |