胰腺黏液性非肿瘤性囊肿：CT 和 MRI 表现。
Mucinous nonneoplastic cyst of the pancreas: CT and MRI appearances.
机构信息
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
出版信息
Abdom Radiol (NY). 2017 Dec;42(12):2827-2834. doi: 10.1007/s00261-017-1204-6.
PURPOSE
The purpose of this retrospective study was to evaluate imaging features of mucinous nonneoplastic cyst (MNNC) of the pancreas.
MATERIALS AND METHODS
Three (0.9%) patients with MNNC of the pancreas were found in 335 surgically resected pancreatic cystic lesions. Three MDCT and two MRI/MRCP studies were retrospectively reviewed.
RESULTS
Three cases of MNNC were found in the pancreatic neck, body, and tail, respectively. All the three cases were multilocular without communication with the main pancreatic duct (MPD), although upstream MPD dilatation was seen in two of the three cases. The signal intensity of the cyst fluid was low on T1-weighted, high on T2-weighted, and low on diffusion-weighted images. Cyst wall was thin in two cases, and the remaining case with obstructive pancreatitis showed visible cyst wall enhancement.
CONCLUSION
Imaging findings of MNNC of the pancreas were nonspecific without communication with the MPD. Cyst wall is typically thin without visible enhancement.
目的
本回顾性研究旨在评估胰腺黏液性非肿瘤性囊肿（MNNC）的影像学特征。
材料与方法
在 335 例手术切除的胰腺囊性病变中发现 3 例（0.9%）胰腺 MNNC。回顾性分析了 3 例 MDCT 和 2 例 MRI/MRCP 研究。
结果
3 例 MNNC 分别位于胰颈、体和尾部。尽管在其中 2 例中可见上游胰管扩张，但所有 3 例均为多房性，与主胰管（MPD）无相通。囊液的信号强度在 T1 加权像上为低信号，在 T2 加权像上为高信号，在弥散加权像上为低信号。2 例囊壁薄，1 例合并阻塞性胰腺炎的病例可见囊壁强化。
结论
胰腺 MNNC 的影像学表现无特异性，与 MPD 无相通。囊壁通常薄，无明显强化。
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