However, cholesterol granulomas are something entirely different. These are small cyst-like growths that can form on the bone next to your middle ear (called the petrous apex) due to inflammation.

OBJECTIVE: To determine whether aeration of surgically treated petrous apex cholesterol granulomas (PA CG) has any correlation with resolution of symptoms. STUDY DESIGN: Retrospective chart review.

Quantitative Evaluations of Vestibular Function in Patients With Petrous Apex Cholesterol Granulomas Treated With an Endoscopic Transsphenoidal Approach: A Report of Two Cases. Live Imaging of the ...