Publications (47) View all
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Article: Double-balloon endoscopy for hepatolithiasis with multiple stones associated with reflux of intestinal contents into the bile duct in a patient with Roux-en-Y hepaticojejunostomy.
Hisashi Hatanaka, Hironori Yamamoto, Tomonori Yano, Jun Ushio, Takeshi Tomiyama, Shin-Ichi Wada, Hirotsugu Sakamoto, Masahiro Okada, Kiichi Tamada, Kentaro SuganoDigestive Endoscopy 11/2012; 24(6):479. · 1.19 Impact Factor -
Article: Biliary sludge during hyperemesis gravidarum and later occurrence of gallstones.
Shigeki Matsubara, Chihiro Kamozawa, Kiichi TamadaJournal of Obstetrics and Gynaecology Research 10/2012; · 0.94 Impact Factor -
Article: A case of intraductal papillary mucinous neoplasms after recurrent acute pancreatitis
Yuki Arai, Kiichi Tamada, Shinichi Wada, Jun Ushio, Hisashi Hatanaka, Takeshi Tomiyama, Kentaro Sugano[show abstract] [hide abstract]
ABSTRACT: We report a case of main pancreatic duct (MPD)-type intraductal papillary mucinous neoplasms of the pancreas (IPMNs), in whom diagnostic imaging modalities showed abnormal findings after 4 episodes of acute pancreatitis. The patient was 51years old at his first admission for acute pancreatitis. He experienced two more episodes of acute pancreatitis, though repeated computed tomography (CT) and endoscopic retrograde cholangiopancreatography (ERCP) showed no abnormality to explain the cause of the pancreatitis. After 3½ years from his first episode of pancreatitis, CT and endoscopic ultrasonography revealed pancreatic duct dilation of the pancreas head. Seven years after the first admission, a second ERCP and intraductal ultrasonography revealed a partially dilated MPD with papillary tumors. He underwent pancreaticoduodenectomy, and the pathological diagnosis was intraductal papillary mucinous adenoma with moderate atypia. This case suggests that acute pancreatitis can precede visualized IPMNs. Therefore, acute recurrent pancreatitis with unknown etiology should be followed up for the possibility of IPMNs, in order to detect neoplastic changes in the early stage to provide a better prognosis for the patient. KeywordsIntraductal papillary mucinous neoplasms of the pancreas–Acute pancreatitis–Endoscopic retrograde cholangiopancreatography–Endoscopic ultrasonographyClinical Journal of Gastroenterology 05/2012; 4(5):307-312. -
Article: Successful lithotripsy under fluoroscopy without cholangiography and confirmation: absence of remnant stones using gadolinium chelate combined with intraductal ultrasound in a patient anaphylactic to iodine-based contrast agent.
Chishio Noguchi, Kiichi Tamada, Shinichi Wada, Akira Ohashi, Hisashi Hatanaka, Jun Ushio, Katsuyuki Nakazawa, Norikatsu Numao, Kentaro SuganoDigestive Endoscopy 05/2012; 24(3):195-6. · 1.19 Impact Factor -
Article: Autoimmune pancreatitis associated with a large pancreatic pseudocyst that disappeared after corticosteroid therapy: a case report and literature review
Naoyuki Nishimura, Kiichi Tamada, Shinichi Wada, Akira Ohashi, Hisashi Hatanaka, Katsuyuki Nakazawa, Norikatsu Numao, Aya Kitamura, Kiichi Satoh, Hironori Yamamoto, Kentaro Sugano[show abstract] [hide abstract]
ABSTRACT: A 51-year-old woman was admitted to our department because of upper abdominal pain. The serum IgG4 concentration was elevated, and abdominal computed tomography revealed diffuse enlargement of the pancreas associated with a large cyst, measuring 8cm in diameter. Endoscopic retrograde cholangiopancreatography revealed narrowing of the main pancreatic duct (from the body to the tail), narrowing of the intrapancreatic bile duct, and dilatation of the bile ducts. The patient was given a diagnosis of autoimmune pancreatitis (AIP) associated with a pancreatic pseudocyst and intrapancreatic bile duct stenosis. Oral steroid therapy resulted in reduced pancreatic swelling, complete disappearance of the pancreatic cyst, and an improvement in biliary stenosis. AIP is rarely associated with pancreatic cyst, and only 13 cases, including ours, have been reported to date. In our patient, intense inflammation apparently led to cyst formation in association with AIP, which responded remarkably to corticosteroid therapy. Correct diagnosis of AIP associated with a pancreatic pseudocyst might save patients from undergoing unnecessary endoscopic and surgical procedures.Clinical Journal of Gastroenterology 04/2012; 2(3):199-203.