학술논문

Imaging modalities for pancreatic NEN -Focusing on EUS- / 膵NENの画像診断 ―EUSを中心に―
Document Type
Journal Article
Source
膵臓 / Suizo. 2023, 38(6):367
Subject
CT
Computed tomography (CT)
Endoscopic ultrasonography (EUS)
MRI
Magnetic resonance imaging (MRI)
Pancreatic neuroendocrine neoplasm (pNEN)
Ultrasound (US)
腹部超音波検査(US)
膵神経内分泌腫瘍(pNEN)
超音波内視鏡検査(EUS)
Language
Japanese
ISSN
0913-0071
1881-2805
Abstract
Imaging of pancreatic neuroendocrine neoplasms (pNEN) is for ① tumor detection, ② differential diagnosis, ③ tumor staging, ④ evaluation of treatment response, and ⑤ evaluation of recurrence. However, if the tumor is not detected, evaluation of ② to ⑤ cannot be performed. Detection of tumors, pancreatic cancer and pNEN with US, CT or MRI can be difficult. Insulinomas in particular are often smaller than 1cm in diameter. For small tumors, endoscopic ultrasonography (EUS) is useful because of its superior spatial resolution. This article describes the imaging findings of pNEN for each imaging modality including tips on how to detect pNEN using EUS.