胰腺非退化性囊性神经内分泌肿瘤：一例报告
Nondegenerated cystic neuroendocrine tumor of the pancreas: a case report.
作者信息
Noda Keisuke, Kuroki Tamotsu, Yamashita Mampei, Hirayama Takanori, Natsuda Koji, Kobayashi Shinichiro, Tokunaga Takayuki, Yamanouchi Kosho, Takeshita Hiroaki, Miura Shiro, Maeda Shigeto
机构信息
Department of Surgery, National Hospital Organization Nagasaki Medical Center, 2-1001-1, Kubara, Omura City, Nagasaki, 856-8562, Japan.
Department of Pathology, National Hospital Organization Nagasaki Medical Center, Omura, Japan.
出版信息
Surg Case Rep. 2020 Jun 29;6(1):154. doi: 10.1186/s40792-020-00918-6.
BACKGROUND
Pancreatic neuroendocrine tumors (PNETs) are typically solid neoplasms but, in very rare cases, present as cystic lesions. We describe a case of a cystic neuroendocrine tumor that developed as a small cystic lesion.
CASE PRESENTATION
In 2011, a 66-year-old Japanese woman underwent computed tomography (CT) that revealed a cystic lesion in the tail of the pancreas measuring 9 mm. She did not have any symptoms. She underwent a CT scan every year thereafter. The cystic lesion gradually increased and was 40 mm in 2019; endoscopic retrograde pancreatography (ERP) was then performed. Cytological examination demonstrated class IIIb adenocarcinoma, and we conducted laparoscopic distal pancreatectomy. Pathological examination showed PNET.
CONCLUSION
Although cystic change of PNET is generally caused by ischemia or necrosis inside the tumor, in our case, PNET occurred as a small cyst that increased without changing form.
背景
胰腺神经内分泌肿瘤（PNETs）通常为实性肿瘤，但在极少数情况下表现为囊性病变。我们描述了一例以小囊性病变形式出现的囊性神经内分泌肿瘤病例。
病例介绍
2011年，一名66岁的日本女性接受计算机断层扫描（CT）检查，发现胰腺尾部有一个9毫米的囊性病变。她没有任何症状。此后每年进行一次CT扫描。囊性病变逐渐增大，2019年时为40毫米；随后进行了内镜逆行胰胆管造影（ERP）。细胞学检查显示为IIIb级腺癌，于是我们进行了腹腔镜远端胰腺切除术。病理检查显示为PNET。
结论
虽然PNET的囊性改变通常是由肿瘤内部的缺血或坏死引起的，但在我们的病例中，PNET是以一个小囊肿的形式出现的，且囊肿在未改变形态的情况下增大。
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