[Differential diagnosis of infiltrative tuberculosis and pneumonia located in the the lower lobe].

Differential diagnosis was made in 2 groups of 85 patients with infiltrative tuberculosis and pneumonia. Clinical, laboratory and x-ray findings confirmed the value of standard examinations (anamnesis, complaints, physical and laboratory methods). Tuberculin diagnosis confirms the primary diagnosis only in case of hyperergic response to the Mantoux test with tuberculin PPD 2 TU.

[Bacteriological aspects of diagnosis of tuberculosis associated with pneumoconiosis].

To determine the frequency and characteristics of bacterial discharge, a cultural investigation of 166 patients' sputa was performed in three groups: Group 1: 37 pneumoconiosis at 2nd and 3d stages and active TB cases; Group 2: 41 non-active TB cases; Group 3: 88 cases of pneumoconiosis without concomitant TB infection. The sputa were studied with bacteriological techniques to determine the biologically changed forms of MBT. As a whole, the L-forms were found in 66.

[Pathomorphosis of coniotuberculosis].

Changes in the epidemiology, morphology and clinical picture of active anthracotic tuberculosis within the last 20 years referred to an increase in the average age of the patients and the length of service under dust conditions. Among the patients with anthracotic tuberculosis the number of drufters increased while the number of coal cutters and breakage face workers decreased. There was observed a rise in the proportion of infiltrative tuberculosis and tuberculomas of the lungs with a simultaneous decrease in the proportion of fibrocavernous tuberculosis.

[Characteristics of the clinical manifestations of inactive pulmonary coniotuberculosis].

Analysis of clinical development of nonactive coniotuberculosis in 167 patients showed that pneumoconiosis, complicated by tuberculosis, grew progressively worse as to its stage, form and incidence. Intoxication syndrome in such patients was of specific tuberculosis character and the above patients could be quite efficiently treated by antituberculosis preparations.