Aortoenteric Fistula with Digestive Contrast Material Leaking in the Aneurysmal Sac.

Aortoenteric fistula, a major complication of aortic surgery, can be identified with certainty on CT scan with opacification of the intestinal tract.

Hourglass Bladder Deformity Induced by Chronic Ketamine Abuse.

Regular and chronic use of ketamine causes inflammatory changes in the urinary tract. Imaging has a crucial role in the assessment of this pathology. A particular imaging characteristic of an hourglass-shaped bladder is highlighted in three cases of ketamine intoxication.

The second case of a young man with L-arginine-induced acute pancreatitis.

Background: Dietary supplementation of arginine has been used by numerous world-class athletes and professional bodybuilders over the past 30 years. L-Arginine indeed enhances muscular power and general performance via maintaining ATP level. However, L-arginine is also known to induce acute pancreatitis in murine models.

Pneumoscrotum, pneumomediastinum, pneumothorax, and pneumorrhachis following colon surgery.

We report the case of an 80-year-old man who developed a colocutaneous fistula as a complication of anastomotic leakage following segmental colonic resection. The patient presented with an abscess of the abdominal wall, subcutaneous emphysema, pneumomediastinum, pneumothorax, pneumorrhachis, and pneumoscrotum. We discuss the possible mechanisms for these unusual clinical presentations of extraperitoneal air following anastomotic leak.

Accuracy of MDCT in predicting site of gastrointestinal tract perforation.

Objective: The purpose of this study was to prospectively evaluate the accuracy of MDCT for preoperative determination of the site of surgically proven gastrointestinal tract perforations and to determine the most predictive findings in this diagnosis.

Subjects And Methods: We prospectively studied 85 consecutive patients with extraluminal air on MDCT who had surgically proven gastrointestinal tract perforations. All patients underwent surgery within 12 hours after MDCT was performed.

Intragastric band erosion after laparoscopic adjustable gastric banding for morbid obesity: imaging characteristics of an underreported complication.

Objective: Our purpose was to describe the imaging findings of intragastric band erosion, an underreported complication after laparoscopic adjustable gastric banding for the treatment of morbid obesity. In this long-term complication, the gastric band fastened around the upper stomach to create a small proximal gastric pouch gradually erodes into the stomach wall and can extend into the gastric lumen. We present three cases of patients with band erosion in whom findings on an upper gastrointestinal series and CT established the diagnosis.