Magnetic resonance enterography findings of a gastrocolic fistula in Crohn’s disease

Crohn’s disease (CD) is characterized by patches of inflammation, which may affect the whole gastro-intestinal tract. Internal fistulization is a common complication of CD due to the transmural nature of inflammation. However, gastrocolic fistulas are rare in CD. We present the magnetic resonance enterography (MRE) findings of a gastrocolic fistula in a patient with longstanding CD with clinical and pathologic correlation.