Institute of Diagnostic and Interventional Radiology, Sixth Affiliated People's Hospital, Shanghai Jiao Tong University, Shanghai 200233, China.
World J Gastroenterol. 2011 Sep 7;17(33):3850-5. doi: 10.3748/wjg.v17.i33.3850.
To improve the diagnosis of heterotopic pancreas by the use of contrast-enhanced computed tomography (CT) imaging and CT virtual endoscopy (CTVE).
A total of six patients with heterotopic pancreas, as confirmed by clinical pathology and immunohistochemistry in the Sixth Affiliated People's Hospital of Shanghai Jiao Tong University, Shanghai, China, were included. Non-enhanced CT and enhanced CT scanning were performed, and the resulting images were reviewed and analyzed using three-dimensional post-processing software, including CTVE.
Four males and two females were enrolled. Several heterotopic pancreas sites were involved; three occurred in the stomach, including the gastric antrum (n = 2) and lesser curvature (n = 1), and two were in the duodenal bulb. Only one case of heterotopic pancreas lesion occurred in the mesentery. Four cases had a solid yet soft tissue density that had a homogeneous pattern when viewed by enhanced CT. Additionally, their CT values were similar to that of the pancreas. The ducts of the heterotopic pancreas tissue, one of the characteristic CT features of heterotopic pancreas tissue, were detected in the CT images of two patients. CTVE images showed normal mucosa around the tissue, which is also an important indicator of a heterotopic pancreas. However, none of the CTVE images showed the typical signs of central dimpling or umbilication.
CT, enhanced CT and CTVE techniques provide useful information about the location, growth pattern, vascularity, and condition of the gastrointestinal wall around heterotopic pancreatic tissue.
通过使用增强计算机断层扫描（CT）成像和 CT 虚拟内镜（CTVE）来提高异位胰腺的诊断水平。
共纳入 6 例中国上海交通大学第六附属医院经临床病理和免疫组织化学证实的异位胰腺患者。进行了非增强 CT 和增强 CT 扫描，并使用三维后处理软件（包括 CTVE）对生成的图像进行回顾性分析。
共纳入 4 名男性和 2 名女性。异位胰腺有多个部位受累；3 例发生在胃，包括胃窦（n = 2）和小弯（n = 1），2 例发生在十二指肠球部。只有 1 例异位胰腺病变发生在肠系膜。4 例病变呈实性软组织密度，增强 CT 呈均匀强化，且 CT 值与胰腺相似。2 例患者 CT 图像中可见异位胰腺组织的导管，这是异位胰腺组织的特征性 CT 表现之一。CTVE 图像显示组织周围正常黏膜，这也是异位胰腺的一个重要指标。但 CTVE 图像均未显示典型的中央凹陷或脐样凹陷征象。
CT、增强 CT 和 CTVE 技术可为异位胰腺组织的位置、生长方式、血管生成和胃肠道壁状况提供有用信息。
