Interventional digital subtraction angiography for small bowel gastrointestinal stromal tumors with bleeding

Figure 1 Small bowel gastrointestinal stromal tumor. A 70-year-old man with a 1.2 cm gastrointestinal stromal tumor of very low risk classification in the upper jejunum. The tumor (white arrows) was round, well-defined and homogeneous in the early arterial phase (A, B). The feeding arteries were not significantly enlarged, and the draining veins (B: black arrowheads) developed clearly and early, merging into the portal vein system (B, asterisk).