Severe hemorrhagic colitis in a patient with chronic myeloid leukemia in the blastic phase after dasatinib use

Figure 1 Colonoscopy showed multiple millimetric nodular hyperemic lesions on the mucosa.

Figure 2 Mucosal biopsy of colon. A: A well-preserved crypt structure with lymphocytes infiltration in the lamina propria (original magnification × 100); B: Viral inclusions and apoptotic bodies were absent (original magnification × 200).

Figure 3 Macroscopic findings include erythema, edema and friability.