Catamenial Pneumothorax in the Setting of a Recent Stroke.

Catamenial pneumothorax is a unique condition associated with thoracic endometriosis. It often presents in females of reproductive age as a recurrent pneumothorax aligned with the menstrual cycle. We present a case of a young female diagnosed with catamenial pneumothorax within one year of experiencing a stroke. The clinical presentation related to the stroke allowed for a unique diagnostic process and management considerations. The patient was successfully treated with progesterone-based contraception in the setting of an estrogen contraindication.