To the diagnosis of caverns in pulmonary tbc. Schwartz (Vopr. Tub., 1927, no. 12)

Analyzing caverns clinic on the sanatorium material (100 cases of cavernous tbc), the author concludes that it is necessary to distinguish early caverns from terminal ones, because the course and prognosis of both are completely different. Fresh early caverns are almost always unilateral, late caverns tend to spread metastatically to the other side and are mostly multiple.