Fig. 1From: Enlarged mediastinal air cyst in a patient with bronchial diverticula localized in the left main bronchus: a case report with surgical and bronchoscopic findings a Computed tomography (CT) showing a mediastinal air cyst (arrow) and fibrotic changes in the subpleural region. b CT obtained 4 years before the first visit to our hospital showing a smaller air cyst (arrow). c CT in the frontal plane showing a connection between the cyst (Cy) and the left main bronchus (LMB) (arrowhead). d CT in the frontal plane showing multiple extensions from the LMB (arrowheads)Back to article page