Inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal neoplasm predominantly affecting children and young adults. Here, we present a case of IMT incidentally discovered in the mesentery of a sixmonth-old infant, managed through radical surgery. The patient initially presented with decreased oral intake and post-feeding vomiting, leading to the discovery of a large pelvic mass. Following comprehensive evaluation and multidisciplinary management, including surgical excision, the patient experienced a favorable clinical outcome. Histopathological examination confirmed the diagnosis of IMT, highlighting the importance of accurate diagnosis and appropriate management strategies for this rare entity.