[Pneumothorax during menstruation: a case report]

Endometriosis is a condition where endometrial glands lie outside the uterine cavity. The underlying pathophysiological mechanism remain unclear. Pelvic localizations are common but thoracic are possible. Catamenial pneumothorax is a clinical variant of spontaneous pneumothorax. The 39 years old women with catamenial pneumothorax is reported. Patient suffered from endometriosis. Diagnosis was established on clinical grounds. After laparoscopy the danazol treatment was started.