Endometriosis presenting as catamenial pneumothorax, pneumopericardium and pneumoperitoneum.

A nulliparous woman in her late 30s with a history of pericardial patch repair for atrial septal defect and completed treatment for pulmonary tuberculosis 9 years ago presented with chest pain, breathlessness and abdominal pain. Radiological imaging revealed right-sided pneumothorax, pneumopericardium and pneumoperitoneum for which an intercostal drain (ICD) was placed. A contrast-enhanced CT of the abdomen showed a distal stomach perforation, which was managed conservatively.