Related Experiment Video
Updated: Jun 24, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
Huge cholesterol granuloma of the middle ear extending to middle cranial fossa
1Department of Otolaryngology, Chonnam National Medical Schoo, Gwangju, South Korea. chulsavio@hanmail.net
Abstract:
Cholesterol granuloma (CG) may erode into the middle ear, the mastoid bone and the petrous apex. However, aggressive erosion into the cranial cavity is extremely rare. Here we report a case of huge CG extending to the middle cranial fossa. Temporal bone computerized tomography showed a soft tissue mass which destroyed the bony plate of the posterior and middle cranial fossa. On magnetic resonance imaging, the mass revealed a high signal on both T1 and T2-weighted images. The mass compressed the middle cranial fossa without invasion into the brain. The CG was removed by extended cortical mastoidectomy. The postoperative course was uneventful and there were no neurological complications.
More Related Videos
Related Concept Videos
Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Cryptococcal Meningitis
Chronic Inflammation: Introduction
Cholecystitis
The Auditory Ossicles
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
Anatomy of the Ear
