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Persistent left superior vena cava (LSVC) is a rare congenital anomaly which usually produces no physiologic derangements if it drains into the right atrium via the coronary sinus, but it may cause significant desaturation when it drains into the left atrium (LA). Failure to diagnose LSVC communicating with the LA preoperatively may lead to serious consequences. We are describing an interesting case of a boy who presented with systemic desaturation due to an undetected LSVC after having undergone corrective surgery for atrioventricular canal defect. We have demonstrated that echocardiography with agitated saline contrast is a simple, accurate, and inexpensive diagnostic modality.

The double-chambered right ventricle (DCRV) is a rare congenital heart disease caused by hypertrophic anomalous muscle bands that divide the ventricular cavity, resulting in the formation of a high-pressure proximal chamber and other low-pressure distal one. Because of its evolving nature, its diagnosis is usually made during childhood/adolescence and very rarely during adulthood. It accounts for approximately 0.5-1% of patients with congenital heart disease. We report a case of a 50-year-old man who presented to us with acute inferior wall myocardial infarction (MI). Echocardiography revealed the features of DCRV and ventricular septal defect. Coronary angiogram revealed significant stenosis in right coronary artery. This is the first case where an adult patient with DCRV incidentally diagnosed after presentation with acute MI and had undergone successful coronary angioplasty.

Unruptured aneurysm of sinus of Valsalva (SOV) is extremely rare. They may be asymptomatic and diagnosed incidentally or can present with either fatal outcome following rupture or manifest acutely with compression of surrounding structures. Dissection of unruptured aneurysm of left SOV into interventricular septum (IVS) and presenting as intramyocardial mass is not reported in the literature. We are reporting a case of 21-year-old man who was referred to us following a seizure episode and was incidentally diagnosed with aneurysm of left SOV dissecting into IVS. Multimodality imaging confirmed the diagnosis. He successfully underwent surgical repair and was asymptomatic during follow-up.

A 6-year-old girl born of a consanguinous marriage, with an uneventful birth history presented with cyanosis, clubbing, and effort intolerance. Her physical examination revealed cyanosis (oxygen saturation 78%), clubbing, single second heart sound, and a grade II/VI ejection systolic murmur over the left parasternal region. Echocardiography revealed the presence of a large subaortic ventricular septal defect, overriding of aorta, aneurysm of the left sinus of Valsalva at the level of the left coronary artery and pulmonary atresia (Fig. 1). Parasternal short-axis view at the aortic valve level demonstrated confluent pulmonary arteries and left coronary to pulmonary artery fistula with a giant aneurysm at the origin of the left coronary artery (Fig. 2; movie