Fig. 6

Male patient, 34 years old, diagnosed with extra-nodal primary cecal lymphoma (NHL-DLBCL) by colonoscopic-guided biopsy. Metastatic workup was done confirming exclusive affection of caecum with no detectable nodal infiltration. His international risk category was low-intermediate risk. He received 6 cycles of chemotherapy. First (interim) PET/CT (hepatic reference 2); axial CT (A) & axial fused PET/CT (B) images show metabolically active enhancing ileo-cecal thickening measuring about 1.6 cm and achieving SUVmax 2.8. Colonoscopic biopsy was done confirming the malignant process. The patient received 4 cycles chemotherapy. Second PET/CT (hepatic reference 2.3); axial CT (A) and axial fused PET/CT (B) images show complete metabolic and morphologic resolution of the ileo-cecal thickening. It was reported as complete response with Deauville score 1