[Epithelial membrane antigen in lymphosarcoma cells (immunomorphologic study)].

11 cases of different types of lymphosarcoma of T- and B-nature are studied immunohistochemically by means of antibodies against epithelial membrane antigen (EMA), including new Soviet monoclonal antibodies ICO-25 to this antigen, common leucocytic antigen, vimentin and cytokeratin. The phenomenon of the EMA including ICO-25 binding to the cells of some lymphosarcomas is confirmed. This indicates that the use of only this "epithelial differentiation marker" in not sufficient for the differentiation between lymphosarcoma and poorly differentiated carcinoma.

[Noninvasive radiodiagnosis of aneurysms of the thoracic aorta].

The paper is concerned with analysis of the results of X-ray investigation of 45 patients with aneurysms of the distal part of the arch and descending part of the thoracic aorta. Errors were made in 16 of 35 patients (35.6%) before admittance to hospital.

[Non-invasive diagnosis of dissecting aneurysm of the aorta].

Possibilities of noninvasive radial diagnostics were studied in examination of 27 patients with dissecting aneurysms of the aorta. Classical X-ray examinations of chest organs have diagnosed aorta wall dissection in 2 of 24 patients. In 19 patients the diagnosis of aorta dissection was suspected.