Fetus in Fetu in 12 Month Old Child: A Rare Case Report and Review of Diagnostic Challenges

Fetus in fetu (FIF) is an exceedingly rare congenital anomaly, with an incidence of approximately 1 in 500,000 births. This case report presents a 12-month-old female with fever, vomiting, and abdominal pain. Initial imaging suggested intussusceptions, but a more detailed analysis revealed a highly organized mass, later identified as FIF upon surgical removal and Histopathological analysis. This report outlines the clinical presentation, differential diagnoses, and surgical intervention for FIF, highlighting the need for prompt and accurate diagnosis.