[The diagnosis of brain cholesteatomas]

The authors analyse the results of radiological examination of 65 patients with cholesteatomas of the brain and the value of the main neuroradiological methods in the diagnosis of the disease. The specific features of the CT-picture of these tumors are discussed. The article describes cases of atypical CT isodensity cholesteatomas and cholesteatomas of increased density as well as cases in which a vascular network of the tumor capsule was demonstrated by angiography. The indices of the contrast range of brain cholesteatomas are analysed. The algorithm of radiodiagnosis of cerebral cholesteatomas is elaborated on the basis of the results of the study.