A case of intracranial cholesterol granuloma is described in a 4-year-old neutered European male cat presented with a 5-month history of progressive weakness, ataxia and depression. On clinical evaluation, haematological and biochemical profiles revealed only mild hypercholesterolemia and magnetic resonance imaging showed a large space-occupying extra-axial mass in the area of the falx, not hom...

Eleven patients who had been surgically treated from 1988 to 1999 were retrospectively reviewed in order to evaluate the efficacy of ventilation tube insertion and mastoidectomy with, or without, mastoid obliteration for intractable middle-ear cholesterol granuloma. The mean age registered was 17.2 years at the time of surgical treatment. All cases were unilaterally affected. Five ears were tre...

Case 1 A 51-year-old woman presented with abrupt right-side hearing loss. Otoscopy revealed swelling of the wall of the extra-auditory canal and bulging of its cartilaginous wall. Excision of the wall, preformed at an outside clinic, led to the aspiration of blood. CT scans depicted a large lobulated expansile mass involving the right mastoid antrum and middle ear cavity, and extending to the r...

INTRODUCTION Cholesterol granuloma is one of the most common abnormalities of the petrous apex. It is a benign slowgrowing expanding cystic mass that contains fluid, lipid, and cholesterol crystals and is surrounded by a fibrous lining. The granuloma arises from a pneumatized petrous apex that becomes obstructed. It most commonly arises from the central petrous apex; however, it has been found ...

Cholesterol granuloma (CG) of the petrous apex is an inflammatory reaction to the by-products of eroded marrow cavities secondary to chronic obstruction of air cells within the petrous pyramid. We report a case of cholesterol granuloma in the left petrous bone occurring in a 28-year-old woman with an unusual presentation. The woman presented with a 6-month history of intermittent left hemicrani...