Objective To investigate the CT imaging features of duodenal Brunner′s gland adenoma.

Methods CT imaging data of 7 pathologically confirmed duodenal Brunner′s gland adenomas were retrospectively analyzed.

Results Duodenal Brunner′s gland adenomas were round or strip-like shaped tumors with homogeneous or heterogeneous density, with a clear margin. The size of tumors ranged from 1.5~5.1 cm, and 4.1 cm in average. The solid part of tumors has a similar density compared to the adjacent intestinal wall on plain CT, and has a moderately heterogeneous enhancement in the arterial phase after contrast agent administration. In the portal venous phase, the tumors were progressively but still heterogeneous enhanced.

Conclusions There are some specific imaging features of duodenal Brunner′s adenoma. The cognition of its imaging features makes accurate diagnosis possible, but the definitive diagnosis still requires pathological diagnosis.