Renal cell carcinoma following bariatric surgery.

Background: Obesity, hypertension, smoking, and amphetamine diet pills increase the risk for renal cell carcinoma (RCC). Obesity causes a four-fold increase. We report our 11-year experience with RCC after bariatric operations.

Critical extreme anterior slippage (paragastric Richter's hernia) of the stomach after laparoscopic adjustable gastric banding: early recognition and prevention of gastric strangulation.

Background: We report an unusual complication after Lap-Band placement characterized by herniation of the anterior stomach through the band.

Methods: Group 1 - 105 patients: Operated elsewhere (prior to US FDA approval) and followed by us; perigastric technique was used in 74 and pars flaccida in 31. Group 2 - 218 patients: Operated by us since August 2001 using the pars flaccida approach only.

Computed tomography patterns in small bowel obstruction after open distal gastric bypass.

Background: Life-threatening small bowel obstruction (SBO) after Roux-en-Y gastric bypass can present with surprisingly minimal laboratory and plain x-ray findings. Based on a 10-year (1994-2003) experience of 1,409 open distal gastric bypasses, we present clinical and radiological findings in 29 patients with unusual forms of bowel obstruction.

Methods: A retrospective chart review was conducted.