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.
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.
Authors: Andrea Peloso; Jacopo Viganò; Alessandro Vanoli; Tommaso Dominioni; Sandro Zonta; Dario Bugada; Carlo Maria Bianchi; Francesco Calabrese; Ilaria Benzoni; Marcello Maestri; Paolo Dionigi; Lorenzo Cobianchi Journal: Ann Med Surg (Lond) Date: 2017-03-29