[Radiodiagnosis of volumetric pathological formations of the brain stem]

Fifteen patients with volumetric abnormal formations of the brain stew were studied. All the patients underwent craniography and computed tomography (CT); magnetic resonance tomography (MRT) and cerebral angiography were conducted in 6 and 8 patients, respectively. The studies provided a full-value differential diagnosis and revealed the following abnormal changes: brain stem tumors in 8 patients, intratruncal hematomas in 6, and arteriovenous malformations in. 1. MRT was ascertained to be the most informative technique in the diagnoses of volumetric abnormal formations. The advantage of MRT over CT is not only to obtain three-dimensional tomograms, but to use various pulse sequences, allowing for a valid differential diagnosis of tumors and intratruncal hematomas. MR angiography is a promising trend in the diagnosis of tumors and vascular malformations.