Acinar Cell Cystadenocarcinoma of the Pancreas

Acinar cell cystadenocarcinoma is a rare malignant epithelial neoplasm of the pancreas with a diffusely cystic, gross architecture in which the cysts are lined with neoplastic epithelial cells that demonstrate evidence of pancreatic exocrine enzyme production. This is the 10th case that has been rep...

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Main Authors: Keita Aoto, Tatsuo Shimura, Yasuhide Kofunato, Ryo Okada, Rei Yashima, Yuichiro Kiko, Seiichi Takenoshita
Format: Article
Language:English
Published: Karger Publishers 2017-09-01
Series:Case Reports in Gastroenterology
Subjects:
Online Access:http://www.karger.com/Article/FullText/455185
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author Keita Aoto
Tatsuo Shimura
Yasuhide Kofunato
Ryo Okada
Rei Yashima
Yuichiro Kiko
Seiichi Takenoshita
author_facet Keita Aoto
Tatsuo Shimura
Yasuhide Kofunato
Ryo Okada
Rei Yashima
Yuichiro Kiko
Seiichi Takenoshita
author_sort Keita Aoto
collection DOAJ
description Acinar cell cystadenocarcinoma is a rare malignant epithelial neoplasm of the pancreas with a diffusely cystic, gross architecture in which the cysts are lined with neoplastic epithelial cells that demonstrate evidence of pancreatic exocrine enzyme production. This is the 10th case that has been reported in the literature. A 77-year-old male complaining of left hypochondrial pain was referred to our hospital for treatment of a pancreatic tumor. A huge, honeycomb-structured tumor was detected in the pancreatic tail. Distal pancreatectomy with total resection of the residual stomach and partial resection of the transverse colon were performed. Microscopically, there were variably sized cystic lesions in the tumor. Immunohistochemical examinations revealed that tumor cells were positive for alpha 1-antichymotrypsin and alpha 1-trypsin, showing that tumor cells had features of pancreatic acinar cells. Thus, the tumor was diagnosed as acinar cell cystadenocarcinoma. Herein, we report a rare case with acinar cell cystadenocarcinoma, which is the 10th case reported in the literature based on a PubMed search. We managed to resect the tumor completely by distal pancreatectomy with total resection of the residual stomach and partial resection of the transverse colon. The patient is still alive 26 months after surgery without any recurrence after 1 year of adjuvant chemotherapy with S-1.
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spelling doaj.art-7268df60fad343cbb307581c0b2354342022-12-22T00:18:31ZengKarger PublishersCase Reports in Gastroenterology1662-06312017-09-0111250451010.1159/000455185455185Acinar Cell Cystadenocarcinoma of the PancreasKeita AotoTatsuo ShimuraYasuhide KofunatoRyo OkadaRei YashimaYuichiro KikoSeiichi TakenoshitaAcinar cell cystadenocarcinoma is a rare malignant epithelial neoplasm of the pancreas with a diffusely cystic, gross architecture in which the cysts are lined with neoplastic epithelial cells that demonstrate evidence of pancreatic exocrine enzyme production. This is the 10th case that has been reported in the literature. A 77-year-old male complaining of left hypochondrial pain was referred to our hospital for treatment of a pancreatic tumor. A huge, honeycomb-structured tumor was detected in the pancreatic tail. Distal pancreatectomy with total resection of the residual stomach and partial resection of the transverse colon were performed. Microscopically, there were variably sized cystic lesions in the tumor. Immunohistochemical examinations revealed that tumor cells were positive for alpha 1-antichymotrypsin and alpha 1-trypsin, showing that tumor cells had features of pancreatic acinar cells. Thus, the tumor was diagnosed as acinar cell cystadenocarcinoma. Herein, we report a rare case with acinar cell cystadenocarcinoma, which is the 10th case reported in the literature based on a PubMed search. We managed to resect the tumor completely by distal pancreatectomy with total resection of the residual stomach and partial resection of the transverse colon. The patient is still alive 26 months after surgery without any recurrence after 1 year of adjuvant chemotherapy with S-1.http://www.karger.com/Article/FullText/455185Acinar cell cystadenocarcinomaPancreatic cancerAlpha 1-antichymotrypsinAlpha 1-trypsin
spellingShingle Keita Aoto
Tatsuo Shimura
Yasuhide Kofunato
Ryo Okada
Rei Yashima
Yuichiro Kiko
Seiichi Takenoshita
Acinar Cell Cystadenocarcinoma of the Pancreas
Case Reports in Gastroenterology
Acinar cell cystadenocarcinoma
Pancreatic cancer
Alpha 1-antichymotrypsin
Alpha 1-trypsin
title Acinar Cell Cystadenocarcinoma of the Pancreas
title_full Acinar Cell Cystadenocarcinoma of the Pancreas
title_fullStr Acinar Cell Cystadenocarcinoma of the Pancreas
title_full_unstemmed Acinar Cell Cystadenocarcinoma of the Pancreas
title_short Acinar Cell Cystadenocarcinoma of the Pancreas
title_sort acinar cell cystadenocarcinoma of the pancreas
topic Acinar cell cystadenocarcinoma
Pancreatic cancer
Alpha 1-antichymotrypsin
Alpha 1-trypsin
url http://www.karger.com/Article/FullText/455185
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AT yasuhidekofunato acinarcellcystadenocarcinomaofthepancreas
AT ryookada acinarcellcystadenocarcinomaofthepancreas
AT reiyashima acinarcellcystadenocarcinomaofthepancreas
AT yuichirokiko acinarcellcystadenocarcinomaofthepancreas
AT seiichitakenoshita acinarcellcystadenocarcinomaofthepancreas