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Dive into the research topics where Yasuhiro Kunii is active.

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Featured researches published by Yasuhiro Kunii.


Digestive Endoscopy | 2000

Cancer Cell Exfoliation by Preoperative Colonoscopic Examination

Yuichi Tomiki; Toshiki Kamano; Yasuo Hayashida; Tsuyoshi Okada; Yasuhiro Kunii; Yoshiro Ishibiki; Yoshihiko Kawase; Masahiko Tsurumaru

Background: Colonoscopic contact and repeated biopsies have been associated with an increased risk of cancer cell dissemination. We examined whether exfoliated cancer cells were detected during preoperative colonoscopic examination in patients with colorectal cancer.


Digestive Diseases and Sciences | 2004

Advanced colorectal carcinomas measuring 20 mm or less exhibit markedly higher invasiveness despite their size.

Yasuhiro Kunii; Toshiki Kamano; Yuichi Tomiki; Shu Hirai; Shinji Kasamaki; Kazuhiro Sakamoto

To analyze the biology of small (20 mm or less) advanced colorectal carcinomas (SAC), 24 cases, 22 small early colorectal carcinomas (SEC) of similar size, and 52 advanced colorectal carcinomas (AC) were studied. The proliferative (Ki-67) labeling index for SAC was 65.9± 17.1%, significantly higher than those for SEC (30.9± 13.7%) or AC (43.0± 17.1%) (P &< 0.01). Matrix metalloproteinase (MMP)-9 and tissue inhibitors of metalloproteinase (TIMP)-2 expressions for SAC were 62.5 and 79.2%, respectively, significantly higher than those for SEC (4.5, 13.6%) or AC (21, 33%) (P &<0.01). Small advanced carcinomas have higher invasiveness than SEC or AC and may represent a different type of cancer.


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

Risk Factors of Ovarian Metastasis from Colorectal Cancer by Using Multivariate Analysis

Yuichi Tomiki; Toshiki Kamano; Yasuhiro Kunii; Tsuyoshi Okada; Shinji Kasamaki; Naoki Negami; Hajime Orita; Shuichi Sakamoto; Kazuhiro Sakamoto; Masahiko Tsurumaru


Nippon Daicho Komonbyo Gakkai Zasshi | 2000

A Study on Diverticulae of the Appendix

Satoru Takekawa; Yasuhiro Kunii; Tsuyoshi Okada; S. Kadamaki; Yoshiro Ishibiki; Yoshihiko Kawase; Shuichi Sakamoto; Y. Tomiki; Kazuhiro Sakamoto; Toshiki Kamano; Masahiko Tsurumaru


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2011

A CASE OF HYPER-AMMONEMIA INDUSED BY AN ILEOVESICAL FISTULA AFTER HEPATIC RESECTION FOR LIVER METASTASIS OF RECTAL CANCER

Michihiro Orihata; Kenji Tukada; Yasuhiro Kunii; Yoshiaki Haraguchi; Shigeru Kobayashi; Toshiki Kamano


Juntendo Medical Journal | 2014

Metastasis of Breast Cancer to the Appendix Causing Acute Appendicitis: Report of a Case

Naoko Iwamoto; Takahisa Suzuki; Kenji Tsukada; Yasuhiro Kunii; Yoshiaki Haraguchi; Michihiro Orihata; Shigeru Kobayashi; Shigetaka Yamasaki


Juntendo Medical Journal | 2014

A Case of Breast Cancer Associated with Multiple Bone Metastases Successfully Treated with Denosumab and Capecitabine

Takahisa Suzuki; Naoko Iwamoto; Kanoko Mouri; Yasuhiro Kunii; Kenji Tsukada; Michihiro Orihata; Shigeru Kobayashi


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2011

A CASE OF NON-FUNCTIONING ENDOCRINE CARCINOMA OF THE PANCREAS, WITH JAUNDICE, A DILATED COMMON BILE DUCT, AND PANCEATIC RETENTION CYSTS

Keigo Yokoi; Michihiro Orihata; Kenji Tukada; Yasuhiro Kunii; Yoshiaki Haraguchi; Shigeru Kobayashi; Shigetaka Yamasaki


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2009

A CASE OF MUCINOUS ADENOCARCINOMA, MAINLY CONSITED OF SIGNET-RING CELLS, IN THE SIGMOID COLON DEVELOPED CARCINOMATOUS MENINGITIS DURING POST-OPERATIVE CHEMOTHERAPY

Ryo Sueyoshi; Michihiro Orihata; Yasuhiro Kunii; Atsuo Katami; Katujiro Maekawa; Toshiki Kamano; Kei Saito


Juntendo medical journal | 2006

Analysis of mitotic counts in advanced colon cancers that invaded subserosal layer and showed poor prognosis despite curative surgery

Kenji Tsukada; Shinji Kasamaki; Shu Hirai; Takashi Matsuoka; Yasuhiro Kunii; Atsushi Okuzawa; Kazuhiro Sakamoto; Toshiki Kamano

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