Pulmonary endometriosis causing haemoptysis. Report of a case treated with lobectomy

A 24-year-old woman with catamenial haemoptysis was treated with the antioestrogenic drug danazol for suspected pulmonary endometriosis. The haemoptysis then ceased, but rapidly recurred when the patient discontinued the medication 3 months later because of severe side effects. Lobectomy was performed, and the diagnosis histologically confirmed, 14 months after the onset of symptoms. Thereafter the patient was free from haemoptysis.