RT Journal Article SR Electronic T1 A 33-year-old man with atypical chest pain JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 474 OP 474 DO 10.1136/heartjnl-2016-310278 VO 103 IS 6 A1 Alastair J Moss A1 Marc R Dweck A1 Andrew D Flapan YR 2017 UL http://heart.bmj.com/content/103/6/474.abstract AB Clinical introduction A 33-year-old man with no history of coronary artery disease presented to the rapid access cardiology clinic with an episode of atypical anginal chest pain. He had a 15 pack-year history of smoking and a family history of myocardial infarction under the age of 55. Physical examination and exercise ECG testing were unremarkable. On assessment in the cardiology clinic, blood sampling was notable for an elevated high-sensitivity troponin I of 61 ng/L (99% upper reference level, 34 ng/L). A coronary CT angiogram was performed (figure 1).Figure 1 CT multiplanar reformatting of the left anterior descending artery with vessel wall analysis of a proximal (blue) and distal (red) segment.Question Which of the following best explains this presentation? MyocarditisMyocardial bridgingKawasaki's diseaseAtherosclerotic plaque ruptureEosinophilic coronary monoarteritis