INTRODUCTION
Enlarged left atrium (LA) is a common finding in severe mitral stenosis
(MS) and severe mitral regurgitation (MR). It can expand to giant
proportions. The unusual finding in our thirty-year-old female
presenting with only mild dyspnea despite markedly dilated LA prompted
us to report this case. The chamber was so enormous that it was
challenging to interpret the cause of the enlarged cardiac silhouette on
the chest radiography.