| 夏华伟,朱文雅,胡红杰,文玲.10例误诊IgG4相关性胰腺炎的影像学表现[J].中国医学影像技术,2025,41(4):622~626 |
| 10例误诊IgG4相关性胰腺炎的影像学表现 |
| Imaging findings of 10 cases of misdiagnosis IgG4-associated pancreatitis |
| 投稿时间：2024-11-18 修订日期：2025-02-08 |
| DOI：10.13929/j.issn.1003-3289.2025.04.024 |
| 中文关键词: 免疫球蛋白G4相关疾病 胰腺炎 误诊 体层摄影术,X线计算机 磁共振成像 |
| 英文关键词:immunoglobulin G4-related disease pancreatitis diagnostic errors tomography, X-ray computed magnetic resonance imaging |
| 基金项目: |
|
| 摘要点击次数: 164 |
| 全文下载次数: 88 |
| 中文摘要: |
| 目的 观察10例影像学误诊IgG4相关性胰腺炎影像学表现。方法 回顾性收集10例术前CT和/或MRI误诊的IgG4相关性胰腺炎,观察其胰腺及胰腺外表现。结果 10例中,2例胰腺存在弥漫型病变而呈"腊肠样",7例见局灶型病变分别位于胰头(3例)、颈(3例)及尾(1例),1例多灶型病变同时见于胰头、颈及尾。病灶于平扫CT多呈稍低密度、偶见钙化,MR T1WI多呈稍低信号、T2WI多呈等或高信号、弥散加权成像多呈稍高信号;增强后均表现为渐进性强化;3例见周围晕征;7例伴主胰管轻度扩张;胰腺外表现主要包括肝内外胆管均扩张及胰腺外器官受累。结论 影像学误诊的IgG4相关性胰腺炎CT及MRI多呈局灶型或弥漫型病变增强后呈渐进性强化,伴周围晕征及胰腺外病变。 |
| 英文摘要: |
| Objective To explore imaging findings of 10 cases of misdiagnosed IgG4-associated pancreatitis. Methods Ten cases of IgG4-associated pancreatitis misdiagnosed by preoperative CT and/or MRI were retrospectively collected, and intrapancreatic and extra pancreatic manifestations were observed. Results Among 10 cases, diffuse lesions resulted "sausage like" appearance of pancreas were observed in 2 cases, focal lesions were found in 7 cases, including 3 cases in neck, 3 cases in head and 1 case in tail of pancreas, while multifocal lesions involved the head, neck and tail of pancreas in 1 case. The lesions mostly presented as slightly low densities and occasional calcifications on non-enhanced CT, slightly low signals on MR T1WI, equal or high signals on T2WI as well as slightly high signals on diffusion weighted imaging, and progressively enhanced after administration of contrast agents. Peripheral halo sign was found in 3 cases, and mild dilatation of main pancreatic duct was observed in 7 cases. Extrapancreatic manifestations mainly included dilatation of bile ducts both inside and outside the liver and involvement of other organs. Conclusion Imaging findings of misdiagnosis IgG4-associated pancreatitis present as focal or diffuse lesions of pancreas with peripheral halo sign and extrapancreatic involvements, which progressively enhanced after administration of contrast agents. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
