Fig. 1

MR enterography: large pedunculated polyp. a Coronal T2-weighted image, mannitol as a luminal contrast, no intravenous contrast. b Axial T2-weighted image, mannitol as a luminal contrast, no intravenous contrast (polyp size 2.5 × 2.3 cm). c Sagittal T2-weighted blade fat saturation (fs) image, mannitol as a luminal contrast, no intravenous contrast (good view of long pedunculus). d Coronal T1-weighted blade image, mannitol as a luminal contrast, no intravenous contrast. e Coronal T1-weighted vibe fs image, intravenous contrast