Salim, HandiPalit, AmitabhMaher, Abdul2024-06-102024-06-102016-02-15Salim H, Palit A, Maher A. When is a mass not a mass? An unusual presentation of prominent crista terminalis. BMJ Case Rep. 2016 Feb 15;2016:bcr2015211532. doi: 10.1136/bcr-2015-211532.1757-790X10.1136/bcr-2015-21153226880820http://hdl.handle.net/20.500.14200/4830This case report describes a patient in whom echocardiography showed borderline left ventricular hypertrophy and a mass adjacent to the right atrial wall. This naturally caused some concern as the differential diagnoses included that of a right atrial myxoma and further investigations were organised. A subsequent cardiac MRI revealed this thickening to be a prominent crista terminalis. The crista terminalis is a variant of normal anatomical structures within the right atrium, which mimics an atrial mass.enCardiologyRadiologyArticle