Psoas abscess complicating Crohn's disease

Six cases of psoas abscess complicating Crohn's disease are presented. The most common manifestations were weight loss, pain, fever and a palpable mass in the flank or iliac fossa. CT-scan confirmed the diagnosis. The treatment of choice in this condition is either laparotomy with drainage and primary resection of affected bowel or initial ultrasound-guided percutaneous drainage followed by early resection of the affected bowel.