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S. Hirai · SciRah

Researcher profile · Semantic Scholar

S. Hirai

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S. Hirai — researcher profile on SciRah

h-index: 14
Works: 67
Citations: 729

Most-cited papers

Correlations among total colonoscopic findings, clinical symptoms, and laboratory markers in ulcerative colitis
T. Osada, T. Ohkusa, I. Okayasu, Tsutomu Yoshida +8 more
2008Journal of Gastroenterology and Hepatology99 citations
Semantic Scholar
Effectiveness of antibiotic combination therapy in patients with active ulcerative colitis: A randomized, controlled pilot trial with long-term follow-up
T. Ohkusa, T. Nomura, T. Terai, H. Miwa +7 more
2005Scandinavian Journal of Gastroenterology90 citations
Semantic Scholar
Altered localization and expression of tight-junction proteins in a rat model with chronic acid reflux esophagitis
Daisuke Asaoka, H. Miwa, S. Hirai, A. Ohkawa +8 more
2005Journal of gastroenterology69 citations
Semantic Scholar
Mucosa‐associated bacteria in ulcerative colitis before and after antibiotic combination therapy
T. Nomura, T. Ohkusa, I. Okayasu, T. Yoshida +11 more
2005Alimentary Pharmacology and Therapeutics54 citations
Semantic Scholar
Idiopathic gastric perforation in neonates and abnormal distribution of intestinal pacemaker cells.
K. Ohshiro, A. Yamataka, H. Kobayashi, S. Hirai +4 more
2000Journal of Pediatric Surgery51 citations
Semantic Scholar
Variant of intraductal carcinoma (with scant mucin production) is of main pancreatic duct origin: a clinicopathological study of four patients.
Koichi Suda, S. Hirai, Y. Matsumoto, M. Mogaki +5 more
1996American Journal of Gastroenterology51 citations
Semantic Scholar
Frequent hypermethylation of RASSF1A in early flat-type colorectal tumors
Naoto Sakamoto, T. Terai, Y. Ajioka, S. Abe +7 more
2004Oncogene48 citations Open access
Semantic Scholar
Breast carcinoma diverging to aberrant melanocytic differentiation: a case report with histopathologic and loss of heterozygosity analyses.
Bunsei Nobukawa, H. Fujii, S. Hirai, T. Kumasaka +4 more
1999American Journal of Surgical Pathology36 citations
Semantic Scholar
Molecular and clinicopathological features of appendiceal mucinous neoplasms
Y. Yanai, Tsuyoshi Saito, Takuo Hayashi, Y. Akazawa +8 more
2020Virchows Archiv30 citations
Semantic Scholar
Improvement of Gastric Atrophy After Helicobacter pylori Eradication Therapy
Toshio Yamada, H. Miwa, T. Fujino, S. Hirai +2 more
2001Journal of Clinical Gastroenterology28 citations
Semantic Scholar
Carcinosarcoma of the esophagus characterized by myoepithelial and ductal differentiations
M. Ohtaka, T. Kumasaka, B. Nobukawa, S. Hirai +5 more
2002Pathology international (Print)21 citations
Semantic Scholar
Pleomorphic adenoma in nasal cavity: immunohistochemical study of three cases.
S. Hirai, Toshiharu Matsumoto, K. Suda
2002Auris, nasus, larynx17 citations
Semantic Scholar
Thoracoscopic ethanol injection and radiofrequency ablation for the treatment of hepatocellular carcinoma located immediately under the diaphragm.
K. Kurokohchi, S. Hirai, T. Ohgi, M. Ono +10 more
2006International Journal of Oncology15 citations Open access
Semantic Scholar
Improvement of gastric atrophy after Helicobacter pylori eradication therapy.
Toshio Yamada, H. Miwa, T. Fujino, S. Hirai +2 more
200315 citations
Semantic Scholar
Surgical-site infection surveillance at a small-scale community hospital
Takashi Saito, Yoji Aoki, K. Ebara, S. Hirai +6 more
2005Journal of Infection and Chemotherapy13 citations
Semantic Scholar
Loss of heterozygosity in clonal evolution with genetic progression and divergence in spindle cell carcinoma of the gallbladder.
A. Arakawa, H. Fujii, Toshiharu Matsumoto, S. Hirai +1 more
2004Human Pathology12 citations
Semantic Scholar
Pneumothorax developing for the first time in a 73-year-old woman diagnosed with Birt-Hogg-Dubé syndrome.
Makiko Kunogi Okura, Toshifumi Yae, O. Nagashima, S. Hirai +2 more
2013Internal medicine10 citations Open access
Semantic Scholar
Clinicopathological features of nonpolypoid colorectal tumors as viewed from the patients' background
S. Abe, T. Terai, Naoto Sakamoto, K. Beppu +8 more
2006Journal of gastroenterology10 citations
Semantic Scholar
Laterally spreading tumor: Clinicopathological study in comparison with the depressed type of colorectal tumor
Yasuhiko Ohno, T. Terai, T. Ogihara, S. Hirai +1 more
2001Journal of Gastroenterology and Hepatology10 citations
Semantic Scholar
Primary gastric T-cell lymphoma accompanied by HTLV-I, HBV and H. pylori infection.
T. Itatsu, H. Miwa, R. Ohkura, R. Iwazaki +7 more
1999Digestive Diseases and Sciences6 citations
Semantic Scholar
Natural history of sigmoid colon cancer: report of a patient observed for 4 years.
Yuichi Tomiki, T. Kamano, Y. Hayashida, S. Takekawa +4 more
2001Endoscopy5 citations
Semantic Scholar
Numerical chromosomal abnormality in gastric MALT lymphoma and diffuse large B-cell lymphoma
Ikuo Watanobe, S. Takamori, K. Kojima, M. Fukasawa +3 more
2002Journal of gastroenterology4 citations
Semantic Scholar
Breast Carcinoma Diverging to Aberrant Melanocytic Differentiation
B. Nobukawa, H. Fujii, S. Hirai, T. Kumasaka +4 more
19994 citations
Semantic Scholar
Yersinia enterocolitica Enteritis Diagnosed with Erythema Nodosum
T. Takeda, Daisuke Asaoka, Sakiko Ogiya, Kennishi Akashi +11 more
2022Internal medicine3 citations Open access
Semantic Scholar
Does ampullary carcinoma arise from distended glands in the papilla of Vater?
H. Sonoue, K. Suda, B. Nobukawa, H. Abe +3 more
2008Journal of Hepato-Biliary-Pancreatic Surgery3 citations
Semantic Scholar
[Two cases of gastrointestinal stromal tumor (GIST) of the stomach and a consideration of its malignancy potential and treatment strategy - report of two cases].
N. Asakage, Shigeru Kobayashi, Tatsuya Gotou, Morio Sasaki +7 more
2007Gan to kagaku ryoho. Cancer & chemotherapy3 citations
Semantic Scholar
A Case Report of Carcinoma of Meckel's Diverticulum
K. Narumi, Syujiro Ohta, M. Okumura, S. Hirai
20073 citations Open access
Semantic Scholar
Advanced Colorectal Carcinomas Measuring 20 mm or Less Exhibit Markedly Higher Invasiveness Despite Their Size
Y. Kunii, T. Kamano, Y. Tomiki, S. Hirai +2 more
2004Digestive Diseases and Sciences3 citations
Semantic Scholar
A CASE OF ADVANCED RECTAL CANCER RECURRED AFTER TRANS-ANAL RESECTION FOR A RECTAL VILLOUS TUMOR WITH IN SITU CARCINOMA
S. Hirai, K. Ebara, Yasuhiro Kitamura
20023 citations Open access
Semantic Scholar
Case Report: Primary Gastric T-cell Lymphoma Accompanied by HTLV-I, HBV and H. pylori Infection
T. Itatsu, H. Miwa, R. Ohkura, R. Iwazaki +7 more
1999Digestive Diseases and Sciences3 citations
Semantic Scholar
Endoscopic features with linked-color imaging of non–Helicobacter pylori Helicobacter-associated gastritis: a case study
T. Takeda, Daisuke Asaoka, S. Hirai, Masahiko Nakamura +1 more
2023VideoGIE2 citations Open access
Semantic Scholar
A morphologic analysis of‘naked’islets of Langerhans in lobular atrophy of the pancreas
K. Suda, M. Tsukahara, T. Miyake, S. Hirai
1994Pathology international (Print)2 citations
Semantic Scholar
A Histopathological Study on Ventral and Dorsal Pancreas Tissues in Patients with Pancreas Divisum
K. Suda, S. Hirai, A. Yamamura, J. Itakura +3 more
19942 citations
Semantic Scholar
A case of a myofibroblastoma of the female breast
M. Saito, K. Ueda, S. Hirai
20121 citations Open access
Semantic Scholar
Sigmoid colon carcinoma that developed from a sessile-type cancer in a short period of time
Y. Tomiki, S. Ono, S. Ishiyama, K. Sugimoto +6 more
2011Clinical Journal of Gastroenterology1 citations
Semantic Scholar
Laparoscopy-assisted transanal pull-through at the time of suction rectal biopsy: a new approach to treating selected cases of Hirschsprung disease.
A. Yamataka, H. Kobayashi, S. Hirai, H. Koga +3 more
2006Journal of Pediatric Surgery1 citations
Semantic Scholar
Report of A Case of Intraosseous Meningioma Presenting as a Multilocular Osteolytic Skull Lesion
J. Shimada, N. Takeda, H. Kawaguchi, S. Hirai
20041 citations Open access
Semantic Scholar
A CASE OF STENOTIC PANCREATOGASTROSTOMY RESECTION AND RE-ANASTOMOSIS AFTER PANCREATICODUODENECTOMY
S. Hirai, K. Ebara, Yasuhiro Kitamura, H. Igai
20031 citations Open access
Semantic Scholar
Antibiotic combination therapy in patients with chronic ulcerative colitis
T. Ohkusa, H. Miwa, O. Kobayashi, T. Terai +8 more
20031 citations
Semantic Scholar
CLINICOPATHOLOGICAL STUDY OF UNSUSPECTED GALLBLADDER CANCER DIAGNOSED AFTER LAPAROSCOPIC CHOLECYSTECTOMY
K. Sakamoto, M. Kitajima, Shigeru Shirota, S. Watabe +7 more
20031 citations
Semantic Scholar
A CASE OF ENDOMETRIOSIS OF THE RECTUM SUCCESSFULLY TREATED WITH PREOPERATIVE HORMONE THERAPY
Shinsuke Sato, Y. Uchida, N. Sakai, H. Maekawa +8 more
20001 citations Open access
Semantic Scholar
Multiple early esophageal cancers arising from Barrett's esophagus, and a review of cases of early adenocarcinoma in Barrett's esophagus in Japan
T. Itatsu, H. Miwa, T. Murai, T. Terai +7 more
1997Journal of gastroenterology1 citations
Semantic Scholar
Germ Cell Neoplasia in Situ Recognized Incidentally with Complaining of Discomfort in the Right Testis: A Case Report
Keiji Takahashi, Kazuhiko Mizushima, Mai Yamazaki, N. Takazawa +4 more
2023Juntendo Iji zasshi = Juntendo medical journal0 citations Open access
Semantic Scholar
A Case of Pancreatic Panniculitis Associated with Acute Exacerbation of Chronic Pancreatitis
H. Soh, R. Ueki, Tomoko Shimizu, S. Hirai
2022Nishi Nihon Hifuka0 citations Open access
Semantic Scholar
A case of secondary phase of syphilis possibly associated with syphilitic hepatitis
Mai Hasegawa, R. Ueki, Sakiko Ohgiya, K. Akashi +3 more
2019Journal of the Japan Organization of Clinical Dermatologists0 citations Open access
Semantic Scholar
頭部傷害により誘発された脈動性頭皮病変塊:好酸球性血管リンパ球増殖症-症例報告-
Bandai Hideki, Osamu Okuda, S. Hirai
20160 citations
Semantic Scholar
A rare case of a primary cutaneous mucinous carcinoma of the auricle
Takahiko Yamada, R. Ueki, Rumiko Sato, A. Hayashi +3 more
20160 citations Open access
Semantic Scholar
Pulsatile Scalp Mass Induced by Head Injury: Angiolymphoid Hyperplasia with Eosinophilia - a Case Report-
H. Bandai, O. Okuda, S. Hirai
20160 citations Open access
Semantic Scholar
A hemodialysis patient suffering from fever of unknown origin associated with inflammatory malignant fibrous histiocytoma
Reo Kanda, Daisuke Sato, Masashi Aizawa, S. Hirai +2 more
20150 citations Open access
Semantic Scholar
Long-term survival of adrenal metastasis from non-small cell lung cancer
A. Iwase, E. Onuma, O. Nagashima, Toshifumi Yae +2 more
2012International Cancer Conference Journal0 citations Open access
Semantic Scholar

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