Inflammatory Myofibroblastic Tumor Mimicking Gastric Duplication Cyst: A Dilemma in Clinical and Radiological Diagnosis

A gastric duplication cyst is a rare congenital malformation of the foregut but inflammatory myofibroblastic tumor (IMT) is a more rare diagnosis. These are mostly asymptomatic and diagnosed incidentally on imaging done for some other cause. It is very difficult to differentiate between these two conditions based on clinical and radiological studies done preoperatively. Endoscopic Ultrasound with Fine Needle Aspiration (EUS-FNA) allows us to correctly diagnose these conditions. However, EUS-FNA carries a high risk of iatrogenic rupture of these lesions with significant infective potential. We present a case of IMT presenting as a Gastric duplication cyst with a brief review of the literature.