ABSTRACT
Two hundred and seventy six cases of spontaneous pneumothorax seen in 11 years [1967-1977] were studied. The frequency of the disease has rised sharply but seems to have stabilised for the last 3 years. Males are more frequently involved [84.8%]. 53.2% of the patients were less than 30 years old. Clinically typical symptoms were found in 70% of cases. On the X-Rays, fluid reactions were frequently seen [34%]. Radiology is very important for determining the etiology. 51,8% of cases were primitive [idiopathic], 24% were tuberculous, 8,7% were of hydatic etiology and 4,7% were infectious. 263 patients were cured [95%]. 25 presented with recurrence. Therapeutic result and recurrences were analysed depending on the etiology and the therapeutics used