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异位胰腺亦称迷走胰腺,是指生长在其他部位的孤立的胰腺组织,与正常胰腺组织无解剖上的联系,属于先天性畸形[1]。异位胰腺作为一种罕见的组织异位病变,在临床上多为偶然发现,尸检发现率为0.6%~13.7%[2]。异位胰腺患者通常无明显临床症状及体征,一旦出现并发症,则常表现为腹痛、消化道出血、黄疸等[3]。由于缺乏特异性标志物和检测方法的局限性,临床上难以通过实验室检查和常规影像学检查来准确诊断[4-5]。异位胰腺组织多分布于消化道,其中肝脏异位胰腺更为罕见。笔者通过分析该病例的18F-FDG PET/CT影像学表现及对相关文献进行复习,以加深对肝脏异位胰腺影像学特征的认识。
肝脏异位胰腺18F-FDG PET/CT影像学表现一例
18F-FDG PET/CT imaging of hepatic ectopic pancreas: a case report
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摘要: 异位胰腺多发生在消化道,肝脏异位胰腺临床非常罕见。笔者报道了1例行18F-FDG PET/CT检查且经手术病理结果证实的肝脏异位胰腺病例,其影像学特征主要表现为十二指肠肿块并伴有18F-FDG异常摄取,考虑为与肝脏异位胰腺相关的炎性病灶表现。笔者拟通过对该病例进行分析并对相关文献进行复习,以加深对肝脏异位胰腺影像学特征的认识。Abstract: Ectopic pancreas often occurs in the digestive tract, and hepatic ectopic pancreas syndrome is very rare clinically. This article reports a case of hepatic ectopic pancreas detected by 18F-FDG PET/CT and confirmed by surgery and pathology. The imaging features were duodenal mass with abnormal uptake of 18F-FDG, which was considered to be an inflammatory lesion associated with hepatic ectopic pancreas. By analyzing this case and reviewing the relevant literature, the writer intends to deepens the understanding of the imaging features of hepatic ectopic pancreas through literature review.
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