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Dive into the research topics where Seiichi Yamamoto is active.

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Featured researches published by Seiichi Yamamoto.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2001

A Patient with Duodenal Adenoma which was Resected Papilla of Vater and Duodenal Mucosa.

Nobuhiko Ueda; Hideaki Nezuka; Seiichi Yamamoto; Yoshiaki Isobe

乳頭部を含む十二指腸第2部の腺腫に対して, 乳頭部切除を伴う十二指腸粘膜切除を施行した1例を経験したので報告した. 症例は60歳の女性. 内視鏡検査では十二指腸乳頭部のやや口側から第3部への移行部までの乳頭側約1/4周性に, 脳回状の隆起を認めた. 表面は白色, 細顆粒状で軟らかく, 悪性所見は認められなかった. 生検では中等度異型を伴う腺腫と診断されたが, 癌合併の可能性を考慮して手術を施行した. 肉眼的には腫瘍は粘膜内に限局し, 周囲の正常粘膜との境界は明瞭であったため, 腫瘍より約5~10mmのmarginを確保し正常十二指腸粘膜から切離した. ついで胆管と膵管方向への腫瘍の進展を確認しつつ乳頭部切除を施行し, それぞれを形成した. 病理学的には病変は粘膜に限局しており軽度から中等度異型を伴う腺管絨毛腺腫であり, 癌巣部は含まれていなかった. 術後1年6か月たった現在, 再発の徴候および胆管炎や膵炎の所見を認めていない.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2008

A Case of Adenocarcinoma arising from Ectopic Gastric Pancreas with Carcinomatous Peritonitis

Jun Kimura; Masahide Kaji; Seiichi Yamamoto; Kiichi Maeda; Kazuhisa Yabushita; Kohji Konishi; Hitoshi Abo; Akio Uchiyama; Atsuo Miwa


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1994

A Clinicopathological Study of Pancreatoduodenectomy with Combined Resection of Portal Vein in Pancreatic Head Cancer.

Kohji Konishi; Masahiko Tsuji; Seiichi Yamamoto; Fumio Futagami; Koichiro Tsugawa; Kiichi Maeda; Kazuhisa Yabushita; Yoshitaka Kuroda; Hiroshi Demachi; Atsuo Miwa


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2007

A CASE OF EARLY BILE DUCT CANCER WITH PANCREATICOBILIARY MALJUNCTION IN A 28-YEAR-OLD MALE

Katsunobu Oyama; Seiichi Yamamoto; Masahide Kaji; Kiichi Maeda; Kazuhisa Yabushita; Kohji Konishi


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2004

A Case of Chronic Pancreatitis with Hemosuccus Pancreaticus Caused by a Microrupture of the Splenic Artery with Arteriosclerosing into the Main Pancreatic Duct

Hideaki Nezuka; Kazuhisa Yabushita; Shouzou Houjou; Inokuchi M; Hideto Fujita; Seiichi Yamamoto; Masahide Kaji; Kiichi Maeda; Kohji Konishi


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2003

A RESECTED CASE OF JUVENILE PROGRESSIVE DUODENAL CANCER

Seiichi Yamamoto; Ryohei Izumi; Wataru Fukushima; Naotaka Sumitani; Hisashi Hirosawa; Katsuhiko Saito


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2002

Surgery for Pulmonary Metastases from Colorectal Cancer

Hideto Fujita; Kazuhisa Yabushita; Isaku Yoshioka; Masafumi Inokuchi; Keiko Iwata; Hideyuki Ajisaka; Seiichi Yamamoto; Masahide Kaji; Kiichi Maeda; Kohji Konishi


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2001

A Patient with Ileal Carcinoids Associated with Radiating Soft Tissue Strands in the Mesenterium.

Nobuhiko Ueda; Hideaki Nezuka; Seiichi Yamamoto; Yoshiaki Isobe


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 1994

THE MERITS AND DEMERITS OF IMMEDIATE BREAST RECONSTRUCTION AFTER MASTECTOMY FOR BREAST CANCER

Kiichi Maeda; Koji Konishi; Seiichi Yamamoto; Satoshi Takada; Takuya Nagata; Fumio Futagami; Koichiro Tsugawa; Takao Taniya; Kazuhisa Yabushita; Yoshitaka Kuroda; Masahiko Tsuji


The Japanese Journal of Gastroenterological Surgery | 2017

Intraductal Dissemination of Bile Duct Carcinoma with Pancreaticobiliary Maljunction in the Pancreatic Duct after Pancreatoduodenectomy

Yuki Higashi; Koichi Shimizu; Toshifumi Watanabe; Shiro Terai; Youhei Kawahara; Koji Amaya; Itsuro Terada; Seiichi Yamamoto; Masahide Kaji; Kiichi Maeda; Akio Uchiyama; Shin Ishizawa

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