Value of two-phase dynamic multidetector computed tomography in differential diagnosis of post-inflammatory strictures from esophageal cancer

Figure 2 Corrosive esophageal stricture. A: Multidetector computed tomography (MDCT). Arterial phase. Coronal reconstruction. Concentric esophageal wall thickening of the corrosive stricture, which has a homogeneous structure (short arrow). The mucosa is traceable as a thin hyperintense line in the centre of thickened walls that was caused by fibrotic changes (long arrow). Conically shaped suprastenotic dilatation (star) with smooth upper boundaries of the stricture; B: MDCT. Arterial phase. Axial CT scan. Target sign - thickening of saved esophageal mucosa (short arrow) in the centre of fibrotically changed submucosal, muscular layers and adventitia of esophageal walls (long arrow).