Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery

A 51-year-old man was referred to our hospital for the further examination of main pancreatic duct interruption. Imaging findings showed a 25-mm-diameter mass lesion located in the pancreatic head. Endoscopic ultrasonography (EUS)-guided fine-needle aspiration (FNA) was performed on the mass. Cytolo...

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Autores principales: Maeda, Nobuhisa, Tanoue, Shiroh, Fujino, Yusuke, Hinokuchi, Makoto, Arima, Shiho, Sasaki, Fumisato, Hashimoto, Shinichi, Kanmura, Shuji, Higashi, Michiyo, Ido, Akio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Internal Medicine 2022
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10518552/
https://www.ncbi.nlm.nih.gov/pubmed/36543207
http://dx.doi.org/10.2169/internalmedicine.0224-22
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author Maeda, Nobuhisa
Tanoue, Shiroh
Fujino, Yusuke
Hinokuchi, Makoto
Arima, Shiho
Sasaki, Fumisato
Hashimoto, Shinichi
Kanmura, Shuji
Higashi, Michiyo
Ido, Akio
author_facet Maeda, Nobuhisa
Tanoue, Shiroh
Fujino, Yusuke
Hinokuchi, Makoto
Arima, Shiho
Sasaki, Fumisato
Hashimoto, Shinichi
Kanmura, Shuji
Higashi, Michiyo
Ido, Akio
author_sort Maeda, Nobuhisa
collection PubMed
description A 51-year-old man was referred to our hospital for the further examination of main pancreatic duct interruption. Imaging findings showed a 25-mm-diameter mass lesion located in the pancreatic head. Endoscopic ultrasonography (EUS)-guided fine-needle aspiration (FNA) was performed on the mass. Cytology suggested adenocarcinoma, but the histological diagnosis was not confirmed. We made a comprehensive diagnosis of resectable pancreatic cancer. The mass shrank after preoperative adjuvant chemotherapy, and the patient underwent surgery. The final pathological diagnosis was type 2 autoimmune pancreatitis (AIP). Two years after surgery, AIP had not recurred in the remaining pancreas.
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spelling pubmed-105185522023-09-26 Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery Maeda, Nobuhisa Tanoue, Shiroh Fujino, Yusuke Hinokuchi, Makoto Arima, Shiho Sasaki, Fumisato Hashimoto, Shinichi Kanmura, Shuji Higashi, Michiyo Ido, Akio Intern Med Case Report A 51-year-old man was referred to our hospital for the further examination of main pancreatic duct interruption. Imaging findings showed a 25-mm-diameter mass lesion located in the pancreatic head. Endoscopic ultrasonography (EUS)-guided fine-needle aspiration (FNA) was performed on the mass. Cytology suggested adenocarcinoma, but the histological diagnosis was not confirmed. We made a comprehensive diagnosis of resectable pancreatic cancer. The mass shrank after preoperative adjuvant chemotherapy, and the patient underwent surgery. The final pathological diagnosis was type 2 autoimmune pancreatitis (AIP). Two years after surgery, AIP had not recurred in the remaining pancreas. The Japanese Society of Internal Medicine 2022-12-21 2023-09-01 /pmc/articles/PMC10518552/ /pubmed/36543207 http://dx.doi.org/10.2169/internalmedicine.0224-22 Text en Copyright © 2023 by The Japanese Society of Internal Medicine https://creativecommons.org/licenses/by-nc-nd/4.0/The Internal Medicine is an Open Access journal distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view the details of this license, please visit (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Case Report
Maeda, Nobuhisa
Tanoue, Shiroh
Fujino, Yusuke
Hinokuchi, Makoto
Arima, Shiho
Sasaki, Fumisato
Hashimoto, Shinichi
Kanmura, Shuji
Higashi, Michiyo
Ido, Akio
Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery
title Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery
title_full Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery
title_fullStr Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery
title_full_unstemmed Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery
title_short Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery
title_sort focal type 2 autoimmune pancreatitis mimicking pancreatic cancer: treatment with neoadjuvant chemotherapy and surgery
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10518552/
https://www.ncbi.nlm.nih.gov/pubmed/36543207
http://dx.doi.org/10.2169/internalmedicine.0224-22
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