Fig. 1From: Late relapse of ulcerative colitis presenting as tracheobronchitis: a case reportChest X-rays obtained at the first visit (A) and 1 year before the first visit (B), respectively. Chest X-ray at the first visit (A) showing narrowing of the trachea compared with that from a year earlier (B). C Chest computed tomography image showing circumferential thickening of the tracheal wall. D Flow–volume loop graph demonstrating fixed upper airway obstructionBack to article page