Catamenial Pneumothorax Due To Pulmonary Endometriosis

We report a case of 37 year old multiparous woman who presented to us with right sided chest pain aggravated on inspiration and coughing, associated with breathlessness on exertion. Symptoms started 2 days after the onset of menstruation. Examination revealed features of right sided pneumothorax. Investigations revealed evidence of endometriosis with elevated serum CA 125 levels. Video assisted thoracoscopy showed pleural nodules, histopathology of the same confirming the presence of pulmonary endometriosis. She was started on hormonal suppressive therapy and is asymptomatic on follow up.