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Featured researches published by Katsushi Okamoto.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1986

A case of mucus-producing cholangiocarcinoma with superficial spread.

Masatoshi Isogai; Yuji Nimura; Naokazu Hayakawa; Hiroshi Hasegawa; Masanori Asai; Junichi Kamiya; Shoji Maeda; Katsushi Okamoto; Hiroshi Yamase; Hideo Kishimoto; Shigehiko Shionoya; Shuji Kato; Makoto Hayakawa


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1990

A resected case of metastatic carcinoma of the pancreas head after resection for the rectal carcinoma.

Norihiro Yuasa; Yuji Nimura; Naokazu Hayakawa; Junichi Kamiya; Shoji Maeda; Katsushi Okamoto; Shigehiko Shionoya


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1987

A resected case of giant malignant fibrous histiocytoma of the pancreas.

Hiroshi Hasegawa; Yuji Nimura; Naokazu Hayakawa; Shoji Maeda; Junichi Kamiya; Katsushi Okamoto; Hiroshi Yamase; Hideo Kishimoto; Shigehiko Shionoya


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1987

A case of mucinous carcinoma of the gallbladder with resectable peritoneal recurrence after central bisegmentectomy of the liver.

Satoshi Kondo; Yuji Nimura; Naokazu Hayakawa; Hiroshi Hasegawa; Katsushi Okamoto; Junichi Kamiya; Hiroshi Yamase; Shigehiko Shionoya; Kojiro Ohtsuka


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1990

A clinical study on multiple primary malignant tumors associated with colorectal cancer.

Norihiro Yuasa; Yuji Nimura; Naokazu Hayakawa; Junichi Kamiya; Shoji Maeda; Katsushi Okamoto; Shigehiko Shionoya


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1989

Present status and surgical results of operative procedures employing pancreatoduodenectomy.

Yuji Nimura; Naokazu Hayakawa; Junichi Kamiya; Shoji Maeda; Katsushi Okamoto; Shigehiko Shionoya


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1987

A case of mucous producing cholangio carcinoma presented by jaundice by the mucous obstruction.

Hiroshi Yamase; Yuji Nimura; Naokazu Hayakawa; Hiroshi Hasegawa; Shoji Maeda; Junichi Kamiya; Yoshiki Miyazaki; Katsushi Okamoto; Hideo Kishimoto; Shigehiko Shionoya


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1986

Clinicopathological studies on 5 year survival patients with gastric cancer of borrmann 4 type.

Hiroshi Yamase; Kunio Takagi; Toshifusa Nakajima; Ichiro Ohhashi; Tomoyuki Takahashi; Kenji Tsuchie; Katsushi Okamoto; Keijiro Kuno; Tamaki Kajitani; Hiroshi Katoh


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 1985

TWO CASES OF POSTOPERATIVE RUPTURED PSEUDOANEURYSM OF THE HEPATIC ARTERY

Naokazu Hayakawa; Yuji Nimura; Junichi Kamiya; Shoji Maeda; Katsushi Okamoto; Hiroshi Yamase; Hiroshi Hasegawa; Takatoshi Matsumoto; Shigehiko Shionoya


Jpn J Gastroenterol Surg | 1985

経皮経肝胆道鏡検査(PTCS)にて術前に診断した胆管内発育型肝細胞がんの1切除例

Hideo Kishimoto; Yuji Nimura; Hiroshi Takaesu; Katsushi Okamoto; Hiroshi Yamase; Kenji Tsuchie; Shoji Maeda; Junichi Kamiya; Hiroshi Hasegawa; Naokazu Hayakawa

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