Results 1 to 10 of about 922 (80)

MRI findings of pancreatic intraductal oncocytic papillary neoplasm: three case reports and review of literature [PDF]

Frontiers in Medicine
BackgroundPancreatic intraductal oncocytic papillary neoplasms (IOPNs) are uncommon precancerous lesions frequently mistaken for other tumors because of their similar imaging characteristics. The concept of IOPN was first proposed by Adsay et al. in 1996.
Yunan Xiang, Yunan Xiang, Yunan Xiang, Xiaojun Chen, Xiaojun Chen, Xiafei Zhan, Zhihan Yan, Zhihan Yan, Zhihan Yan, Jiangfeng Pan, Xinyu Wang   +10 more
doaj   +4 more sources

A missed case of intraductal oncocytic papillary neoplasm associated with missed stones in extrahepatic bile duct: a case report [PDF]

Frontiers in Oncology
The pathological features of intraductal oncocytic papillary neoplasm (IOPN) of the bile duct include tumor cells that are rich in eosinophilic cytoplasm and arranged in papillary structures.
Cong Xie, Hang Zhang, Hang Zhang, Yushan Meng, Yushan Meng, Bin Cao   +5 more
doaj   +4 more sources

Intraductal oncocytic papillary neoplasm arising in Peutz-Jeghers Syndrome bile duct: a unique case report [PDF]

Diagnostic Pathology, 2022
Background Peutz-Jeghers syndrome (PJS) is a rare, autosomal dominant disorder caused by germline mutations of STK11/LKB1, with an increased risk of tumors at multiple sites.
Qingyue Liu, Zhiyu Wang, Chaoran Yu, Jianping Zhu, Chengli Liu, Xiangsheng Li, Li Ren, Teng Li   +7 more
doaj   +2 more sources

Benign Biliary Tumors and Precursor Neoplasms: An Updated Clinicopathological and Molecular Review Based on the 2026 WHO Classification [PDF]

Biomedicines
Benign biliary tumors and precursor neoplasms of the biliary tract are a heterogeneous group of uncommon neoplasms with significant clinical and diagnostic implications.
Joon Hyuk Choi
doaj   +2 more sources

Case Report: Metachronous oncocytic and colloid carcinoma arising from pancreatic intraductal neoplasms over four decades [PDF]

Frontiers in Oncology
Intraductal papillary mucinous neoplasms (IPMN) are precursors of pancreatic ductal adenocarcinoma (PDAC) and may progress to distinct invasive phenotypes depending on epithelial subtypes. Tubular carcinoma, often arising from pancreatobiliary epithelium,
Maria Imperatrice, Maria Imperatrice, Michael Johannes Pflüger, Mari Mino-Kenudson, Carlos Fernandez-del Castillo, M. Lisa Zhang   +5 more
doaj   +2 more sources

Oncocytic intraductal papillary neoplasm of the pancreas: Multimodality imaging and cytopathologic correlation [PDF]

South African Journal of Radiology
Intraductal oncocytic papillary neoplasm of the pancreas (IOPN-P) is a rare cystic epithelial tumour with distinctive imaging, cytological and histological features.
Anju Ranga, Pranav Gupta, Agrima Bansal, Ravindra K. Saran, Sudeshdeep Sinha, Kalpana Bansal   +5 more
doaj   +2 more sources

Non-invasive intraductal oncocytic papillary neoplasm forming a protruding lesion toward the duodenum from the accessory papilla: a case report [PDF]

Surgical Case Reports
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.
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   +20 more
doaj   +2 more sources

FDG-PET Findings of Intraductal Oncocytic Papillary Neoplasms of the Pancreas: Two Case Reports

Case Reports in Gastroenterology, 2012
Intraductal oncocytic papillary neoplasm (IOPN) of the pancreas is a rare pancreatic tumor. To date, there have been three case reports of IOPN which showed strong positivity on 18F-fluorodeoxyglucose positron emission tomography (FDG-PET), raising the ...
Takashi Kato, Shuji Ikari, Kenji Hirata, Takuro Machida, Hideaki Nakamura, Takashi Meguro, Takayuki Morita, Toshiyuki Takahashi, Nagara Tamaki, Shoichi Horita   +9 more
doaj   +3 more sources

Intraductal Papillary Mucinous Neoplasm (IPMN) of the Pancreas: History, Myths, and Realities Between Past and Future [PDF]

Medical Sciences
Intraductal papillary mucinous neoplasm (IPMN) of the pancreas is among the most clinically relevant and conceptually intricate precancerous lesions encountered in modern gastroenterology. First identified in the early 1980s as a “mucin-producing tumor,”
Riccardo Urgesi, Cristiano Pagnini, Maria Carla Di Paolo, Lorella Pallotta, Gianfranco Fanello, Pavlos Antypas, Elio Pietro Perrone, Giuseppe Villotti, Andrea D’Amico, Fernando De Angelis, Maria Giovanna Graziani   +10 more
doaj   +2 more sources

Deciphering pancreatobiliary intraductal oncocytic papillary neoplasms: integrative analysis of histomorphologic patterns, immunophenotypic markers, and emerging molecular biomarkers [PDF]

World Journal of Surgical Oncology
Purpose We reviewed recent advancements in the characterization of intraductal oncocytic papillary neoplasm (IOPN) of the pancreas, with a specific focus on developments in immunohistochemical markers, molecular pathology, and pathogenic mechanisms over ...
Yingxian Qian, Shengwei Mo, Xiaoyan Chang   +2 more
doaj   +2 more sources