Shinnosuke Kawahara, Naoto Yamamoto, Kota Washimi, Rei Kanemoto, Daishi Takahashi, Yuto Kamioka, Itaru Hashimoto, Mariko Kamiya, Aya Kato, Yukio Maezawa, Keisuke Kazama, Masaaki Murakawa, Sho Sawazaki, Toru Aoyama, Hiroshi Tamagawa, Takashi Oshima, Norio Yukawa, Yasushi Rino, Tomoyuki Yokose, Aya Saito, Soichiro Morinaga
BACKGROUND: Intraductal oncocytic papillary neoplasm (IOPN), previously classified as a subtype of intraductal papillary mucinous neoplasm (IPMN), has been described as an independent disease by the WHO since 2019. IOPN is a rare tumor, with few reported cases. Herein, we report a case of resected non-invasive IOPN that formed a lesion protruding toward the duodenum from the accessory papilla. CASE PRESENTATION: An 80-year-old woman was referred to our hospital because of a giant mass in the pancreatic head detected on abdominal contrast-enhanced computed tomography (CT) performed for a close examination of a mass in the right breast...
February 15, 2024: Surgical Case Reports