Renal Cell Carcinoma in Fistulizing Crohn’s Disease Patient Who Received Anti-TNF α Therapy

Figure 1

Axial and coronal view of abdominal CT scan showed a well-defined hypodense focal lesion originally from left kidney near hilum region with clue sign. The renal lesion showed inhomogeneous enhancement in the arterial phase with partial wash out in delayed phase, and it measured 2.6 cm × 2.6 cm.