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Chest radiograph showing a large retrocardiac shadow with an intrathoracic gas bubble on the right, indicating a large hiatus hernia.
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Chest X-ray showed evidence of a large hiatus hernia (Fig. 1).
Computed tomography images of the chest, showing gastric volvulus within a giant hiatal hernia. (a); Axial image showing associated right pleural effusion (white asterisk) and compression of the heart (white arrow) and right lower lobe. (b); Coronal image showing the entire stomach within the thoracic cavity. (c); A tablet (white arrow) can be seen in the right mediastinum on this coronal image.
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A small hyperdensity could be seen in the right mediastinum, thought to be a tablet (Fig. 2a, b, c).