[Pathology of the apex of the temporal bone pyramid: cholesterol granuloma and congenital cholesteatoma]. / Patologiya verkhushki piramidy visochnoi kosti: kholesterolovaya granulema i vrozhdennaya kholesteatoma.

The report presents modern views on the origin and pathomorphological characteristics of the cholesterol granuloma of the petrous apex of temporal bone, its clinical comparison with congenital cholesteatoma of the same localization. The differential diagnostic features in CT and MRI scans are analyzed in detail, and the principles of surgical treatment, indications and contraindications are discussed. Also the case of atypical course of cholesterol granuloma is presented, which was difficult in the diagnostics but with a successful treatment result.