Fig. 3

Radiological imaging and pathological findings of the ischemic intestinal site. (a) ¹⁸F-FDG-PET/CT before the patient’s chemotherapy demonstrated the involvement of malignant lymphoma in multiple intestine sites and the liver. The open triangle indicates the tissue involvement. (b) The ¹⁸F-FDG-PET image superimposed in red on the CT image obtained before the chemotherapy illustrates the transverse image of the involvement (left). CT on day 10 after chemotherapy depicting transmural necrosis of the intestine (middle). On day 14 after the initiation of the chemotherapy, the enhancement of intestinal wall on CT were recovering (right). The open triangle indicates the involved intestine. (c) Pathological findings of resected intestine confirmed the elimination of the majority of the lymphoma. Macroscopic findings identified the incomplete perforation site covered with a thin serous membrane (left column, yellow arrow). The pathological findings elucidated the elimination of the majority of lymphoma cells and concomitant partial necrotic tissue (right column)