Department of CT, Tangshan Gongren Hospital, Hebei, China.
Department of CT, Tangshan Gongren Hospital, Hebei, China.
Clin Imaging. 2022 Feb;82:135-138. doi: 10.1016/j.clinimag.2021.11.015. Epub 2021 Nov 18.
To analyze the appearance of duodenal tubulovillous adenoma on multi-slice spiral CT images to facilitate early diagnosis and treatment to potentially improve prognosis.
We retrospectively analyzed clinical data and CT imaging findings of 11 cases of duodenal tubulovillous adenomas, all confirmed by pathology. The location, size, shape, CT density, relationship with surrounding structures, accompanying bile duct obstruction, and enhancement pattern of each lesion were documented.
All 11 lesions occurred in the descending part of the duodenum. Ten cases occurred in the duodenal papilla area. Nine cases had a low-density ring sign or semicircle sign between the lesion and the adjacent normal intestinal wall on axial images. Eight cases had differing degrees of bile duct dilatation, five of which had concomitant pancreatic duct dilatation. Noncontrast images revealed uniform soft tissue density; contrast enhanced images showed moderate, mostly uniform enhancement, with the most enhancement in the venous phase. In the arterial phase, two lesions showed linear enhancing vessels.
On multi-slice spiral CT imaging, duodenal tubulovillous adenomas have certain characteristics that could be used for clinical diagnosis and treatment.
On multi-slice spiral CT imaging of duodenal tubulovillous adenoma, findings of nodular or cauliflower-like shape, uniform density, uniform moderate enhancement, and a peripheral low-density ring sign could improve diagnostic accuracy.
分析十二指肠绒毛管状腺瘤在多层螺旋 CT 图像上的表现，以利于早期诊断和治疗，从而可能改善预后。
回顾性分析 11 例经病理证实的十二指肠绒毛管状腺瘤的临床资料和 CT 影像学表现，记录病变的位置、大小、形态、CT 密度、与周围结构的关系、是否伴有胆管梗阻及增强方式。
11 个病灶均位于十二指肠降部，10 个病灶位于十二指肠乳头区，9 个病灶在轴位图像上病灶与相邻正常肠壁之间可见低密度环征或半环征，8 例有不同程度的胆管扩张，其中 5 例伴有胰管扩张，平扫呈均匀软组织密度，增强扫描呈中度、多为均匀强化，静脉期强化最明显，动脉期 2 个病灶可见线状强化的血管。
多层螺旋 CT 成像上，十二指肠绒毛管状腺瘤具有一定特征，有助于临床诊断和治疗。
