The Intercollegiate MRCS examination contains 2 papers: MRCS Part A1&2 and MRCS Part B. The MRCS Paper A1 and A2 consist of Single Best Answer (SBA) questions whilst the MRCS Paper B is based on communication skills and structured interviews.
A 55-year-old man presents to the upper gastrointestinal clinic with symptoms of indigestion. He undergoes upper gastrointestinal (GI) endoscopy and visits you later to discuss his results. You tell him he has Barrett's oesophagus and he wants to know more. The following are features of Barrett's oesophagus except:-