Catamenial pneumothorax with umbilical and diaphragmatic endometriosis: a case report and review of the literature.

A 44-year-old female presented with a history of recurrent right-sided pneumothoraces, uterine fibroids, and a palpable lump in her navel. Total abdominal hysterectomy with bilateral salpingo-oophorectomy (TAH-BSO) and resection of the umbilical nodule was performed. Intraoperative inspection of the right hemidiaphragm revealed adherent brownish-blue nodules without any associated diaphragmatic defects and a similar-appearing nodule at the umbilicus.