Importance of CT in Evaluating Internal Hernias after Roux-en-Y Gastric Bypass Surgery.

As the incidence of obesity increases, laparoscopic Roux-en-Y gastric bypass (REYGB) surgery has become a surgical option for many patients. Although the laparoscopic Roux-en Y procedure has been shown to reduce weight and improve diabetes, hyperlipidemia, hypertension and sleep apnea, it is not without significant risks, as more than 10% of patients who undergo this procedure have postoperative GI complications. This is a case of a 51 year old man who presented with diffuse abdominal pain one month status-post Roux-en-Y gastric bypass.

An update on imaging of colorectal cancer.

Screening of asymptomatic average-risk patients for presence of colon cancer and early detection in precursor stages is of great interest to general population. Comprehensive evaluation of symptomatic or high-risk patients represents another important clinical focus. Available techniques for total colon imaging, rectal cancer staging and the role of positron emission tomography are discussed.

Liver regeneration and surgical outcome in donors of right-lobe liver grafts.

Introduction: Previous studies of healthy live-liver donors have suggested that complete liver regeneration occurs within a matter of weeks; however, there have been no long-term studies evaluating liver regeneration and few studies documenting long-term donor outcome.

Materials And Methods: Fifty-one donors who provided right-lobe grafts underwent volumetric spiral computed tomography scans preoperatively and postoperatively at time intervals of 1 week and 1, 3, 6, and 12 months. Patient demographics, surgical data, and postoperative outcome were correlated with liver regeneration data.

Living donor liver transplantation in adults: vascular variants important in surgical planning for donors and recipients.

Objective: The purpose of our study was to explore the frequency with which surgically important hepatic vascular variants occur independently as well as in genetically related adult candidates for donation or receipt of a liver transplant.

Materials And Methods: We conducted a retrospective study of 107 adult living donor liver transplant candidates. From this pool of candidates, 50 sets of close relatives were selected to undergo transplantation.

Rectal hidrocystoma.

We describe the endorectal sonographic and magnetic resonance (MR) imaging findings of a hidrocystoma of the rectal wall, a tumor that arises in sweat glands and may occur in a perianal location. To our knowledge, occurrence in the rectum has not been reported previously. The unusual appearance of a solid lesion with a central fluid-filled cavity may suggest the diagnosis of a hidrocystoma.