[Magnetic resonance imaging of the brain in multiple sclerosis].

The paper deals with the diagnosis of demyelinating diseases of the central nervous system, including multiple sclerosis, by means of magnetic resonance imaging (MRI). The low-magnetic induction tomographs "Obraz" ("Image") and "Ellips" ("Ellipse") made in Russia were used to perform MRI of the brain in 255 patients diagnosed as having multiple sclerosis. Whether low-magnetic induction MRI can detectfocal changes in the brain in the presence of multiple sclerosis was assessed; the tomographic signs of the disease were clarified and classified.

[Malignant lymphoproliferative lesions of the trachea].

Detailed review of literature and analysis of 4 authors's cases of the trachea non-Hodgkin lymphoma and lymphogranulomatosis are presented.

[Primary melanoma of the respiratory tract].

4 cases of melanoma of the respiratory tract (trachea and bronchi) are analysed clinico-morphologically. A case of melanoma with a primary multiple location (trachea and the main bronchus), rapid recurrence after surgery and radiation therapy is described in detail. Melanocytic nature of the tumor is proved immunohistochemically.

[Complex radiation diagnosis of retroperitoneal tumors and tumor-like states].

The paper presents the results of complex radiation diagnosis of 118 cases of retroperitoneal tumors and tumor-like states, including 71 patients with tumors of mesenchymal origin, 7 with those of neurogenic origin, 6 with cysts, 9 with lymphogranulomatosis, 8 with retroperitoneal fibrosis, 12 with metastases, and 5 with hematomas. A wide complex of routine and up-to-date high-technology radiation diagnostic techniques was used to study the patients. The authors show the merits and dismerits of each technique.

[Single-photon emission-computed tomography in evaluation of cerebral microcirculation of patients with epileptiform syndrome].

One-photon emission computed tomography (OPECT) was used to examine 87 patients with the epileptiform syndrome. Eighty five patients had impaired drug distribution which was suggestive of varying degree cerebral circulatory disorders. OPECT with a Tc-99m-gm-pao used in patients with the epileptiform syndrome revealed the morphological substract of brain structures.

[Complex radiation diagnosis of solitary metastases in the lung].

Analyzing about 1000 cases of metastatic lesion of the lung indicated that the incidence of metastases was 12.9% (117 patients). Computed tomography (CT) enhances the informative value of X-ray studies in solitary metastases.