Brunner's gland hamartoma: computed tomographic findings with histopathologic correlation in 9 cases.
OBJECTIVE
To describe the computed tomographic (CT) features of Brunner's gland hamartoma with histopathologic correlation.


METHODS
The CT images of 9 patients with pathologically proven Brunner's gland hamartoma were reviewed retrospectively. All patients underwent CT performed on multidetector-row CT scanner with various protocols, all of which included portal venous phase.


RESULTS
Brunner's gland hamartomas presented as small (mean, 1.9 cm) Yamada type II or III (67%, 6/9) polyps with frequent internal cyst (33%, 3/9). They were isoattenuated on unenhanced CT (83%, 5/6) and hypoattenuated in portal phase (56%, 5/9) when compared with the pancreas. Peripheral rimlike enhancement in earlier phase was commonly found (67%, 6/9) and most of them enhanced homogeneously in the later phase (100%, 4/4).


CONCLUSIONS
In a patient with asymptomatic small submucosal mass in the duodenal first or second portion, hypoattenuated mass with peripheral rimlike enhancement or internal cystic change suggests the possibility of Brunner's gland hamartoma.
Hur
Saebeom
S
Department of Radiology, Seoul National University College of Medicine, Seoul, Korea.
Han
Joon Koo
JK
Kim
Min-A
MA
Bae
Jeong-Mo
JM
Choi
Byung Ihn
BI
D000328:Adult; D000368:Aged; D002011:Brunner Glands / Q000000981:diagnostic imaging* / Q000473:pathology; D004378:Duodenal Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006222:Hamartoma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*