Publication: Pancreatic granular cell tumor diagnosed by endoscopic ultrasound-guided fine needle aspiration biopsy
Issued Date
2019-08-05
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ISSN
18657265
18657257
18657257
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2-s2.0-85061295943
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Mahidol University
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SCOPUS
Bibliographic Citation
Clinical Journal of Gastroenterology. Vol.12, No.4 (2019), 347-354
Suggested Citation
Chonlada Krutsri, Tomohisa Iwai, Mitsuhiro Kida, Hiroshi Imaizumi, Toshihiro Kawano, Masayoshi Tadehara, Masafumi Watanabe, Kosuke Okuwaki, Hiroshi Yamauchi, Koizumi Wasaburo Pancreatic granular cell tumor diagnosed by endoscopic ultrasound-guided fine needle aspiration biopsy. Clinical Journal of Gastroenterology. Vol.12, No.4 (2019), 347-354. doi:10.1007/s12328-019-00941-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/51470
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Title
Pancreatic granular cell tumor diagnosed by endoscopic ultrasound-guided fine needle aspiration biopsy
Abstract
© 2019, Japanese Society of Gastroenterology. Pancreatic granular cell tumors (GCTs) are rare and making an imaging diagnosis of pancreatic GCT is difficult because it has no definite characteristics on contrast-enhanced computed tomography (CE-CT) or magnetic resonance imaging (MRI) owing to varying findings. We report about a 32-year-old woman who presented with an incidental finding of a pancreatic tumor with a past history of excision of a right forearm GCT nodule 12 years ago. CE-CT revealed a 23-mm-sized homogeneous low enhancement tumor in the arterial phase in the pancreatic body. Abdominal MRI revealed a lobulated hypointense mass in T1WI and high signal in DWI. Endoscopic ultrasonography (EUS) revealed that the tumor was oval, hypoechoic with posterior echo enhancement, and had a well-defined border. Although EUS-guided fine needle aspiration revealed benign granular cells of the pancreas, she underwent laparoscopic surgery because the metastatic tumor from the past lesion was not excluded. The pathological finding was benign GCT of the pancreas and it was considered as an original lesion. In the previous reports, most of the resected cases were considered to be pancreatic cancer or neuroendocrine tumor preoperatively. Compared to CE-CT and MRI, EUS imaging and EUS-FNA are more reliable diagnosis tools for pancreatic GCT. Although malignant GCT accounts for approximately 1–2% of all cases, surgical resection or strict follow-up should be considered because it is difficult to predict its biological behavior.