Papers - KAWAKAMI Yujiro

A unique cause of chronic abdominal pain.

Yujiro Kawakami, Kotaro Akita, Kazuya Suzuki, Hiroshi Nakase

JGH open : an open access journal of gastroenterology and hepatology   4 ( 6 ) 1236 - 1237  2020.12  [International journal]

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The images presented here demonstrated how we arrived at the diagnosis of Ascaris lumbricoides infection in a 54-year-old man with chronic abdominal pain by capsule endoscopy (CE). In this case, computed tomography (CT) images were not representative, and further investigation with CE was required to confirm the diagnosis. The combination of CT and CE was useful for diagnosing Ascaris lumbricoides infection in this patient.

DOI PubMed

Recanalization of an obstructive pancreaticojejunal anastomosis with direct visualization by using antegrade peroral pancreatoscopy.

Yujiro Kawakami, Shinsuke Koshita, Yoshihide Kanno, Takahisa Ogawa, Toji Murabayashi, Hiroshi Nakase, Kei Ito

Endoscopy   52 ( 10 ) E376-E377  2020.10  [International journal]

DOI PubMed

Arteriovenous malformation in pancreas mimicking hypervascular tumor.

Keisuke Ishigami, Tomoya Sakuma, Masato Saito, Yujiro Kawakami, Yoshiharu Masaki, Ayako Murota, Masayo Motoya, Yasutoshi Kimura, Hiroshi Nakase

JGH open : an open access journal of gastroenterology and hepatology   4 ( 4 ) 773 - 774  2020.08  [International journal]

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Arteriovenous malformation (AVM) is defined as a disease that causes blood flow abnormality due to anastomoses of the arteries and veins. AVM can occur in any gastrointestinal tract, but pancreatic AVM (P-AVM) is very rare. Previous reports demonstrated that contrast-enhanced CT (CECT) typically showed abnormal vascular network in pancreas. We present a 58-year old man with a history of acute pancreatitis. He was referred to our hospital for examination of pancreatic mass. CECT showed a round-shaped hypervascular lesion with a diameter of 8 mm in the head of the pancreas. Selective angiography showed vascular network and early visualization of superior mesenteric vein. We finally diagnosed this case as P-AVM. He underwent duodenum preserving pancreatic head resection. Histological findings confirmed the preoperative diagnosis of P-AVM.

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Predictive Value of Localized Stenosis of the Main Pancreatic Duct for Early Detection of Pancreatic Cancer.

Yoshihide Kanno, Shinsuke Koshita, Takahisa Ogawa, Hiroaki Kusunose, Kaori Masu, Toshitaka Sakai, Keisuke Yonamine, Yujiro Kawakami, Yuki Fujii, Kazuaki Miyamoto, Toji Murabayashi, Fumisato Kozakai, Jun Horaguchi, Yutaka Noda, Masaya Oikawa, Takaho Okada, Kei Ito

Clinical endoscopy   52 ( 6 ) 588 - 597  2019.11  [International journal]

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BACKGROUND/AIMS: In this study, we aimed to evaluate the predictive value of localized stenosis of the main pancreatic duct (MPD) for early detection of pancreatic cancer. METHODS: Among 689 patients who underwent endoscopic retrograde pancreatography from January 2008 to September 2018, 19 patients with MPD findings were enrolled. These patients showed findings for indicating suspicious pancreatic cancer at an early stage (FiCE); FiCE was defined as a single, localized stenosis in the MPD without a detectable mass (using any other imaging methods) and without other pancreatic diseases, such as definite chronic pancreatitis, intraductal papillary mucinous neoplasm, and autoimmune pancreatitis. Final diagnoses were established by examining resected specimens or through follow-up examinations after an interval of >5 years. RESULTS: Among 19 patients with FiCE, 11 underwent surgical resection and 8 were evaluated after a >5-year observation period. The final diagnosis of the MPD stenosis was judged to be pancreatic cancer in 9 patients (47%), including 3 with intraepithelial cancer, and to be a non-neoplastic change in 10. The sensitivity, specificity, and accuracy of preoperative pancreatic juice cytology were 75%, 100%, and 88%, respectively. CONCLUSION: The predictive value of FiCE for pancreatic cancer prevalence was 47%. Histological confirmation with pancreatic juice cytology is necessary before surgical resection.

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Endoscopic ultrasound-guided hepaticoduodenostomy for an obstructed anterior hepatic branch in a patient with Billroth-II reconstruction.

Yujiro Kawakami, Yoshihide Kanno, Shinsuke Koshita, Takahisa Ogawa, Hiroaki Kusunose, Toji Murabayashi, Kei Ito

Endoscopy   51 ( 8 ) E221-E222  2019.08  [International journal]

DOI PubMed

Hepatobiliary and Pancreatic: Hepatic alveolar echinococcosis mimics cholangiocarcinoma: Role of EUS‐FNA

Y Kawakami, K Suzuki, T Miyake, Y Hayashi, M Akahonai, K Fukuda, K Yonezawa, R Morita, H Nakase

Journal of Gastroenterology and Hepatology    2018.12

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IgG4-related orbital tumour with eye enucleation--infra-orbital nerve enlargement

KAWAKAMI YUJIRO

Rheumatology    2014.04

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