title: Catamenial pneumothorax.
abstract: Recurrent spontaneous pneumothorax associated with the menstrual bleeding--catamenial pneumothorax--is a rare condition. Only 56 cases have so far been described. Two cases are hereby presented, and the different ways of treatment are mentioned. The basic cause of the condition remains unknown.
mesh_terms: D000328:Adult; D004322:Drainage; D005260:Female; D006801:Humans; D008597:Menstrual Cycle; D011030:Pneumothorax / Q000209:etiology / Q000601:surgery*