Pseudoaneurysm following modified Blalock-Taussig shunt mimicking suprasternal abscess: A rare presentation

The modified Blalock-Taussig shunt is a well-recognized palliative procedure for cyanotic congenital heart disease. Post procedure pseudoaneurysm mimicking a suprasternal abscess is of very rare occurrence. We present a child of L-Transposition of great arteries (L-TGA), pulmonary atresia and ventricular septal defect (VSD) with small pulmonary artery size that underwent modified Blalock Taussig shunt for severe cyanosis at 1 1/2 years. Six months after the procedure the child presented with a suprasternal swelling and fever. Angiography showed pseudoaneurysm from the proximal anastomotic site. The pseudoaneurysm was suitably tackled by interventional techniques and surgery for the underlying cardiac condition is being planned.