Case Session 04: Miscellaneous (2018)-A rare case of giant submitral left ventricular diverticulum

A rare case of giant submitral left ventricular diverticulum

Video Transcription

Video Summary

A 38-year-old Guinean woman was evaluated for a giant uterine fibroid, but cardiac imaging incidentally found a left ventricular outpouching. Echocardiography, CT, and MRI showed a muscular structure communicating widely with the left ventricle and contracting synchronously, consistent with a congenital left ventricular diverticulum rather than pseudoaneurysm. Coronary disease was excluded. The patient declined surgery and remains under follow-up. The case highlights the importance of distinguishing diverticulum from aneurysm, since management and risks differ. Congenital ventricular outpouchings are rare but can cause embolism, arrhythmias, rupture, or sudden death. Cardiac MRI is especially useful for diagnosis and characterization.

Keywords

left ventricular diverticulum

congenital ventricular outpouching

cardiac MRI

pseudoaneurysm differential diagnosis

echocardiography