Sensorineural Hearing Impairment Recovery after Transmastoidal Surgery for a Petrous Apex Cholesterol Granuloma: A Case Report

Cholesterol granulomas are the most common primary lesions of the petrous apex. Although their benign character, impingement of critical neurovascular structures can cause significant symptomatology such as hearing impairment. We present unique results after treatment of a cholesterol granuloma loca...

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Detalles Bibliográficos
Autores principales: van Keulen, Stan, Szweryn, Walter J., Jansen, Thijs T.G., Bekkers, Stijn, Kunst, Henricus P.M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: European Academy of Otology and Neurotology and the Politzer Society 2022
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9524395/
https://www.ncbi.nlm.nih.gov/pubmed/35971269
http://dx.doi.org/10.5152/iao.2022.21349
Descripción
Sumario:Cholesterol granulomas are the most common primary lesions of the petrous apex. Although their benign character, impingement of critical neurovascular structures can cause significant symptomatology such as hearing impairment. We present unique results after treatment of a cholesterol granuloma located in the petrous apex causing sensorineural hearing impairment. A transmastoidal approach was performed using an intraoperative computed tomography-guided navigation system. The video, which is included for reference, illustrates clear drainage of the cyst and drain positioning. The hearing improved completely in the lower frequencies at 500 and 1000 Hz and with a 19 dB improvement in overall bone conduction in the affected ear.

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