Large cholesterol granuloma of the petrous apex treated via subcochlear drainage.

M Jaramillo, P C Windle-Taylor

Journal: The Journal of laryngology and otology 2002;115(12):1005-9

PMID: 11779334

Abstract

This is a case report of a patient with bilateral cholesterol granuloma of the petrous apex, who presented with unilateral symptoms. Initially suspected as having a dermoid cyst, he underwent posterior fossa exploration, drainage and biopsy. Symptoms recurred one year later and subcochlear drainage of the petrous apex cyst was successfully performed. Follow-up for over 18 months shows no clinical nor imaging signs of recurrence. A MEDLINE literature search was carried out and relevant paper publications reviewed. Case presentation including initial, pre- and post-operative imaging is presented. This is followed by discussion of current concepts on the presentation and management of large cholesterol cysts of the petrous apex.

Address: Department of Otolaryngology, Head and Neck Surgery, Derriford Hospital, Plymouth, UK. [email protected]

DOI: 10.1258/0022215011909611

Link outs

Free resources

Medical:

https://medlineplus.gov/cholesterol.html

Miscellaneous:

https://assays.cancer.gov/CPTAC-23

MeSH Terms: Adult, Cholesterol, Dermoid Cyst, Diagnosis, Differential, Drainage, Granuloma, Foreign-Body, Humans, Magnetic Resonance Imaging, Male, Petrous Bone, Skull Neoplasms, Tomography, X-Ray Computed, Treatment Outcome