Isolated Cystic Lung Disease and Recurrent Pneumothorax in a 50-Year-Old Woman.

A 50-year-old woman with no smoking history and medical history significant for portal vein thrombosis on anticoagulation, hepatic steatosis, and recent admission 3 weeks prior for spontaneous left-sided pneumothorax treated with chest tube insertion and successful lung reexpansion presented to the emergency department with 3 days of pleuritic chest pain and dyspnea on exertion. She denied any fevers, chills, diaphoresis, weakness, cough, hemoptysis, nausea, vomiting, or extremity swelling. She stated the chest pain was similar to what she had experienced 3 weeks prior.