Differential diagnosis of pulmonary dissemination

Of 93 patients with pulmonary dissemination, directed to clarify the etiology of the disease, 18 had disseminated pulmonary tuberculosis, and the rest 75 had nonspecific dissemination of the lungs. Among them, the largest group consisted of patients with sarcoidosis (22), blastomatous process (16), nonspecific diseases (13), pneumoconiosis (10). In 14 patients, rare forms of pulmonary dissemination were found. When clarifying the nature of pulmonary dissemination, one should take into account the clinical and radiological features of the disease in comparison with the data of laboratory and functional examination of the patient. In difficult cases, it is necessary to resort to a puncture or open biopsy of the lung.