case_images: PMC10902870_01
case_images: Supine chest X-ray demonstrating an area of lucency underneath the right hemidiaphragm representing intra-abdominal free air (red arrow)
case_images: cureus-0016-00000053216-i01.jpg
case_images: PMC10902870_01_cureus-0016-00000053216-i01.jpg
case_images: FIG1
case_images: On day 13, a chest X-ray revealed increased lucency underneath the right hemidiaphragm concerning pneumoperitoneum measuring up to 6.6 cm (Figure 1).
case_images: Axial view of computed tomography (CT) chest demonstrating free air in the peritoneal cavity (red arrows)
case_images: cureus-0016-00000053216-i02.jpg
case_images: PMC10902870_01_cureus-0016-00000053216-i02.jpg
case_images: FIG2
case_images: Upper endoscopy showing antral gastritis with some epithelial hemorrhages
case_images: cureus-0016-00000053216-i03.jpg
case_images: PMC10902870_01_cureus-0016-00000053216-i03.jpg
case_images: FIG3
case_images: It did not show any ulcers or lesions explaining the etiology of pneumoperitoneum, only revealing antral gastritis with some subepithelial hemorrhages (Figure 3).