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  Indian J Med Microbiol
 

Figure 1: (a) X-ray of abdomen, erect view, showing subdiaphragmatic free air (white arrows), air outlining the properitoneal fat stripe (black arrows) (b) Cupola sign (arrowheads) (c) Rigler's sign (arrow) (d) Chest radiograph showing free air under the diaphragms (arrowhead)

Figure 1: (a) X-ray of abdomen, erect view, showing subdiaphragmatic free air (white arrows), air outlining the properitoneal fat stripe (black arrows) (b) Cupola sign (arrowheads) (c) Rigler's sign (arrow) (d) Chest radiograph showing free air under the diaphragms (arrowhead)