Phlegmonous appendicitis and mobile cecum syndrome simulating ileal duplication cyst in a 9 year old girl.

Mobile cecum syndrome is a rare entity that produces recurrent lower abdominal pain mimicking appendicitis. Appendicitis developing in a mobile cecum at an abnormal location eludes the clinical diagnosis and confuses the clinicians unless a high index of suspicion is harbored. We present an unusual case of phlegmonous appendicitis in a mobile cecum masquerading as duplication cyst of ileum in a 9 years old girl.