We report a rare case of a 3 year­old boy with a gastric duplication cyst located in the stomach, presenting with vague abdominal pain, recurrent cough, haemoptysis and a persistent patch in the left lower lobe of the lung on X­ray appeared to be a sequestration. The duplication cyst was attached to the diaphragm and lungs by a narrow tract confirmed by MRCP scan delineating usefulness of scan. The cyst was excised. 

Keywords: Gastric Duplication Cyst; Pneumonia; Pseudopancreatic Cysts.