Figure 11. Gastric adenocarcinoma in a young woman who was referred for MR imaging during the third trimester for evaluation of a gastric mass. Extent of the mass could not be ascertained with endoscopy. Coronal half-Fourier RARE image shows a large tumor (arrow) extending into the gastric lumen. Serosal involvement was found at surgery, although no uterine involvement was detected with imaging or at surgery. Arrowhead = fetal bladder.