McConnell's sign in echo-cardiography is seen in: (A) MI, (B) Pulmonary embolism, (C) Sarcoidosis, (D) HOCM
Answer is B. McConnell's sign is a distinct echocardiographic feature of acute massive pulmonary embolism. It is defined as a regional pattern of right ventricular dysfunction, with akinesia of the mid free wall and hyper contractility of the apical wall. Ref ganong's review of medical physiology 25e p753