Nao Furuya, Atsushi Yamaguchi, Naohiro Kato, Syuhei Sugata, Takuro Hamada, Takeshi Mizumoto, Yuzuru Tamaru, Ryusaku Kusunoki, Toshio Kuwai, Hirotaka Kouno, Kazuya Kuraoka, Yoshiyuki Shibata, Sho Tazuma, Takeshi Sudo, Hiroshi Kohno, Shiro Oka
BACKGROUND: High-grade pancreatic intraepithelial neoplasia (PanIN) exhibits no mass and is not detected by any examination modalities. However, it can be diagnosed by pancreatic juice cytology from indirect findings. Most previous cases were diagnosed based on findings of a focal stricture of the main pancreatic duct (MPD) and caudal MPD dilatation and subsequent pancreatic juice cytology using endoscopic retrograde cholangiopancreatography (ERCP). We experienced a case of high-grade PanIN with an unclear MPD over a 20-mm range, but without caudal MPD dilatation on magnetic resonance cholangiopancreatography (MRCP)...
March 16, 2024: World Journal of Clinical Cases