Fig. 16.1 Contrast-enhanced axial scans (a–d). Ulcer of the anterior bulb of the duodenum (red arrow), perforated in the peritoneal cavity. Signs of peritonitis are air in the lesser sac,…
Fig. 9.1 Expansive solid lesion of the descending colon with free small air bubbles near the lesion (arrow) and pneumoperitoneum (curved arrow) Fig. 9.2 Modest quote of pneumoperitoneum between intestinal…
Fig. 8.1 Diverticular microperforation: little amount of free air associated with thickening of the sigmoid wall, diverticular pouch and perivisceral signs (mild, fuzzy hyperdensity and stranding of pericolic tissue, arrows)…
Penetrating trauma Blunt traumatic rupture of the duodenum Pelvic trauma with perforation of the rectum Postoperative Post-diagnostic procedure Spontaneous colon perforation Extension from pneumomediastinum Gas-containing retroperitoneal abscess Duodenal perforation is…
Fig. 3.1 Sites of free intraperitoneal air in the abdomen on US examination (Modified from Beyer and Modder [21]) 3.2.1 US of Pneumoperitoneum Free air in abdominal cavity can give…
Fig. 10.1 A 24-year-old male patient admitted to the emergency department after a blunt abdominal trauma (motor vehicle accident). (a) Plain film radiograph, upright view, shows scarce amount of air…
Fig. 17.1 A 51-year-old woman presenting with dyspnea after a liver transplant. Axial CT image shows free intraperitoneal liquid (black arrow), the collapsed inferior vena cava (arrowhead), and the “round…
Fig. 14.1 Abdominal CT scan. CT image shows even small amounts of free air (a–d). Additional CT shows the site of the perforation (a, white circle), focal thickening of the…
Fig. 11.1 Surgically confirmed right colon perforation caused by a salted codfish bone in a 56-year-old woman complaining with vague abdominal pain. Contrast-enhanced images (a–c: axial views, d: coronal thin-slab…
Fig. 7.1 MDCT MPR coronal oblique image shows inflammation of the appendix with fluid-filled lumen, associated to inflammatory thickening of the caecal wall In cases of severe appendicitis, it is…
