A 72-year-old man is admitted to hospital with shortness-of-breath and central chest pain. On examination his pulse is 102/min, BP 100/64 mmHg, respiratory rate 24/min, temperature 37.7ºC, oxygen saturations 96% on room air. A 12-lead ECG shows sinus rhythm, at a rate of 94/min with no diagnostic ST-T changes. The troponin I level is < 0.05 µg/L. A CT chest (with contrast) is ordered: What is the most likely diagnosis? A-Superior vena cava obstruction B-Aortic dissection (Stanford type A) C-Infective endocarditis D-Aortic dissection (Stanford type B) E-Pulmonary embolism @medicalcortex #medstudent #exams #nurse #nursing #f4f #l4l #premed #usmle #doctor #surgery #surgeon #funny #meme #medicine #medical #grades #memes #memesdaily #haha #finals #stress #fail #medschool #medicalschool