[The immune and fibrinolytic potentials of patients with a postpneumonic lung abscess from the viewpoints of systemic-regional correlations].

The immune and fibrinolytic systems were studied in 55 patients with postpneumonic lung abscess; 17 of them were operated on. Revealed were reductions of the number and functional activity of the T-cell immunity and a systemic-regional fibroanalysis data (high fibrinolytic activity in the systemic circulation and bronchial lumen; high activity in the blood of the resected lung portion). High activator activity of the sputum and its absence in the pus of the abscess cavity evidence that the source of the plasminogen activator is the bronchial wall not the destructed pulmonary tissue.