Case-based discussion from the Royal Devon and Exeter NHS Foundation Trust: a painful paradox. Issue 8 (28th February 2014) - Sharp, Charles; Powari, Manish; Mascarenhas, Ravik; Spiers, Alexander; Froeschle, Peter O; Patel, Bipen D; Silver, David A; Maher, Toby M; Gibbons, Michael A