저자들은 류마티스 관절염에 동반된 폐섬유증을 진단받은 환자에서 기관거대증과 자발성 종격동기종이 재발되는 예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

Tracheomegaly is a distinctive condition that presents with marked dilation of the trachea. Spontaneous pneumomediastinum is the result of alveolar rupture with dissection of the airway along the bronchus and into the mediastinum. Tracheomegaly and recurrent spontaneous pneumomediastinum are rare complications of pulmonary fibrosis when combined with rheumatoid arthritis. We present a case of tracheomegaly and recurrent spontaneous pneumomediastinum that was precipitated by repeated respiratory infection and chronic cough in a patient with pulmonary fibrosis that was associated with rheumatoid arthritis. (Tuberc Respir Dis 2008;64:144-148)