Sameh Hany Emile1, Tarek Mahdy2. 1. General Surgery Department, Mansoura Faculty of Medicine, Mansoura University, 60 Elgomhuoria Street, Mansoura City, 35516, Egypt. sameh200@hotmail.com. 2. General Surgery Department, Mansoura Faculty of Medicine, Mansoura University, 60 Elgomhuoria Street, Mansoura City, 35516, Egypt.