Mansoor Zafar1, Amarah Kiani2, Nick Galiatsatos2, Muhammad Jh Rahmani3. 1. Department of Gastroenterology, Conquest Hospital, East Sussex Healthcare Trust, St Leonards-on-Sea, East Sussex, UK. 2. Department of Radiology, Conquest Hospital, East Sussex Healthcare Trust, St Leonards-on-Sea, East Sussex, UK. 3. Department of Health and Ageing, Conquest Hospital, East Sussex Healthcare Trust, St Leonards-on-Sea, East Sussex, UK.