Anatomical Variations of Iliac Vein Tributaries and Their Clinical Implications During Complex Pelvic Surgeries.

Background: During high sacrectomies and lateral pelvic compartment exenterations, isolating the external and internal iliac veins within the presacral area is crucial to avoid inadvertent injury and severe hemorrhage. Anatomical variations of external iliac vein tributaries have not been previously described, whereas multiple classifications of internal iliac vein tributaries exist.

Objective: We sought to clarify the iliac venous system anatomy using soft-embalmed cadavers.

Laparoscopic Mesorectal Excision in Obesity: Novel Insights and Technical Strategies.

Introduction: Obesity is a burgeoning problem worldwide. Although beneficial in obese patients, conventional laparoscopic mesorectal excision for rectal cancer is technically challenging, with a higher conversion rate to open compared with nonobese patients. We describe novel strategies to circumvent these difficulties.