An unusual case of double outlet right ventricle.

A 17-year-old unmarried girl was admitted with the complaints of breathlessness on exertion, swelling of upper and lower limbs and intermittent fever for last 21 days. Past history revealed bluish discolouration of nails and tongue since birth along with recurrent dyspnoea. After thorough general and cardiovascular examination, a provisional diagnosis of tetralogy of Fallot was made. Chest x-ray revealed cardiomegaly and absent main pulmonary artery segment. ECG revealed gross right axis deviation and right ventricular hypertrophy. Echocardiogram showed features of double outlet right ventricle.