Fig. 31

Trauma. Chest radiograph (a) of a car accident victim shows a gastric tube with a thoracic loop (arrowheads). Contrast-enhanced CT of the same patient (b) confirms traumatic diaphragmatic hernia; note the absence of interposition of lungs between the stomach and the chest wall—the so-called “dependent viscera sign” (arrows). Abdominal CT (c) shows that D2 is surrounded by fluid (asterisk) and its wall presents the target sign (arrowheads). The upper GI study (d) of the same patient revealed uniform, regular, fold thickening at D2 and D3, similar to a stack of coins (arrows), representing intramural edema/hematoma