Hideki Niwa

2.2k total citations
32 papers, 1.7k citations indexed

About

Hideki Niwa is a scholar working on Surgery, Epidemiology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Hideki Niwa has authored 32 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Surgery, 9 papers in Epidemiology and 7 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Hideki Niwa's work include Gastrointestinal disorders and treatments (8 papers), Neuroendocrine Tumor Research Advances (6 papers) and IgG4-Related and Inflammatory Diseases (3 papers). Hideki Niwa is often cited by papers focused on Gastrointestinal disorders and treatments (8 papers), Neuroendocrine Tumor Research Advances (6 papers) and IgG4-Related and Inflammatory Diseases (3 papers). Hideki Niwa collaborates with scholars based in Japan and United Kingdom. Hideki Niwa's co-authors include Shinji Masuda, Yoh Zen, Kazuyoshi Katayanagi, Hiroshi Kurumaya, Koichi Tsuneyama, Hiroshi Minato, Yasuni Nakanuma, Kenichi Harada, Yasunori Sato and Motoko Sasaki and has published in prestigious journals such as Hepatology, The American Journal of Surgical Pathology and World Journal of Gastroenterology.

In The Last Decade

Hideki Niwa

25 papers receiving 1.6k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hideki Niwa Japan 12 1.1k 919 656 327 277 32 1.7k
Nils Kinnman Sweden 19 405 0.4× 437 0.5× 666 1.0× 351 1.1× 277 1.0× 33 2.0k
Katsuyuki Miyabe Japan 20 1.1k 1.1× 448 0.5× 363 0.6× 329 1.0× 99 0.4× 80 1.4k
Itaru Naitoh Japan 22 1.6k 1.5× 708 0.8× 551 0.8× 394 1.2× 99 0.4× 148 2.0k
Catherine T. Chung Canada 17 372 0.4× 378 0.4× 233 0.4× 333 1.0× 227 0.8× 33 1.4k
Tatsuru Ikeda Japan 17 213 0.2× 215 0.2× 196 0.3× 216 0.7× 306 1.1× 56 1.2k
Yoshihiko Tokusashi Japan 19 600 0.6× 62 0.1× 606 0.9× 391 1.2× 294 1.1× 58 1.5k
Jorge Baixauli Spain 21 571 0.5× 79 0.1× 158 0.2× 575 1.8× 158 0.6× 71 1.1k
Fujitsugu Matsubara Japan 21 428 0.4× 86 0.1× 180 0.3× 484 1.5× 274 1.0× 83 1.3k
Masanori Nakashima Japan 22 894 0.9× 151 0.2× 171 0.3× 689 2.1× 139 0.5× 47 1.4k
Yuichi Goto Japan 18 266 0.3× 109 0.1× 133 0.2× 313 1.0× 206 0.7× 80 924

Countries citing papers authored by Hideki Niwa

Since Specialization
Citations

This map shows the geographic impact of Hideki Niwa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hideki Niwa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hideki Niwa more than expected).

Fields of papers citing papers by Hideki Niwa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hideki Niwa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hideki Niwa. The network helps show where Hideki Niwa may publish in the future.

Co-authorship network of co-authors of Hideki Niwa

This figure shows the co-authorship network connecting the top 25 collaborators of Hideki Niwa. A scholar is included among the top collaborators of Hideki Niwa based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hideki Niwa. Hideki Niwa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ogaẃa, Atsuhiro, et al.. (2020). Unsuccessful Preoperative Adjuvant Chemoradiotherapy Followed by Successful Additional Radiotherapy and Chemotherapy: A Case of Neuroendocrine Carcinoma of the Anal Canal. Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons). 45(2). 127–133.
2.
Tsukatani, Toshiaki, Hideki Niwa, Hiroyuki Tsuji, et al.. (2019). Superior mediastinal lymphadenopathy by silicosis mimicking metastasis of papillary thyroid carcinoma – Case report and literature review. Auris Nasus Larynx. 47(6). 1054–1057. 4 indexed citations
3.
Tsuji, Kunihiro, Hisashi Doyama, Shinya Yamada, et al.. (2012). [A case of disseminated carcinomatosis of bone marrow treated by S-1 and cisplatin after distal gastrectomy for early gastric cancer].. PubMed. 39(5). 813–5. 2 indexed citations
4.
Hirano, Yasumitsu, Takuo Hara, Hiroshi Nozawa, et al.. (2008). Combined choriocarcinoma, neuroendocrine cell carcinoma and tubular adenocarcinoma in the stomach. World Journal of Gastroenterology. 14(20). 3269–3269. 11 indexed citations
5.
Fujii, Takahiko, Yoh Zen, Kenichi Harada, et al.. (2008). Participation of liver cancer stem/progenitor cells in tumorigenesis of scirrhous hepatocellular carcinoma—human and cell culture study. Human Pathology. 39(8). 1185–1196. 48 indexed citations
6.
Niwa, Hideki, Motoko Sasaki, Joji Haratake, et al.. (2007). Clinicopathological significance of antinuclear antibodies in non‐alcoholic steatohepatitis. Hepatology Research. 37(11). 923–931. 34 indexed citations
7.
Hirano, Yasumitsu, Hiroshi Nozawa, Makoto Hirano, et al.. (2006). A Case of Primary Signet Ring Cell Carcinoma of the Vermiform Appendix. The Japanese Journal of Gastroenterological Surgery. 39(3). 373–376. 2 indexed citations
8.
Zen, Yoh, Takahiko Fujii, Keita Itatsu, et al.. (2006). Biliary papillary tumors share pathological features with intraductal papillary mucinous neoplasm of the pancreas. Hepatology. 44(5). 1333–1343. 281 indexed citations
9.
Zen, Yoh, Satoshi Kitagawa, Hiroshi Minato, et al.. (2005). IgG4-positive plasma cells in inflammatory pseudotumor (plasma cell granuloma) of the lung. Human Pathology. 36(7). 710–717. 248 indexed citations
10.
Kitagawa, Satoshi, Yoh Zen, Kenichi Harada, et al.. (2005). Abundant IgG4-Positive Plasma Cell Infiltration Characterizes Chronic Sclerosing Sialadenitis (Küttner's Tumor). The American Journal of Surgical Pathology. 29(6). 783–791. 283 indexed citations
11.
Niwa, Hideki, Shinji Masuda, Chikashi Kobayashi, & Yoshinao Oda. (2004). Pulmonary synovial sarcoma with polypoid endobronchial growth: A case report, immunohistochemical and cytogenetic study*. Pathology International. 54(8). 611–615. 15 indexed citations
12.
Zen, Yoh, Kenichi Harada, Motoko Sasaki, et al.. (2004). IgG4-related Sclerosing Cholangitis With and Without Hepatic Inflammatory Pseudotumor, and Sclerosing Pancreatitis-associated Sclerosing Cholangitis. The American Journal of Surgical Pathology. 28(9). 1193–1203. 407 indexed citations
13.
Tsuneyama, Koichi, Kazuo Ohba, Yoh Zen, et al.. (2003). A comparative histological and morphometric study of vascular changes in idiopathic portal hypertension and alcoholic fibrosis/cirrhosis. Histopathology. 43(1). 55–61. 27 indexed citations
14.
Sugita, Yurika, Yoshiyuki Fujiwara, Hirokazu Taniguchi, et al.. (2003). Quantitative molecular diagnosis of peritoneal lavage fluid for prediction of peritoneal recurrence in gastric cancer. International Journal of Oncology. 23(5). 1419–23. 32 indexed citations
15.
Shimomura, Atsushi, et al.. (2002). A Case of Adult Primary Small Bowel Volvulus Preoperatively Diagnosed by “Whirl Sign” on Computed Tomography. Nihon Gekakei Rengo Gakkaishi (Journal of Japanese College of Surgeons). 27(4). 654–658. 4 indexed citations
16.
Ogaẃa, Atsuhiro, et al.. (1995). AN OPERATED CASE OF CYTOMEGALIC INCLUSION DISEASE IN THE SMALL INTESTINE. The journal of the Japanese Practical Surgeon Society. 56(2). 370–374. 1 indexed citations
17.
Niwa, Hideki, et al.. (1989). The rate of lipid oxidation in septic rat models. Surgery Today. 19(4). 439–445. 21 indexed citations
18.
19.
Niwa, Hideki, et al.. (1988). [A case of retroperitoneal chylous cyst developed after cholecystectomy and choledochotomy].. PubMed. 89(2). 282–5. 4 indexed citations
20.
Ogawa, Yoshitaka, et al.. (1988). Studies on the energy expenditure following surgical stress (II. The correlation between energy expenditure and hormonal changes). Surgery Today. 18(6). 694–704. 1 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Nils Kinnman Breakdown of academic impact, for papers by Katsuyuki Miyabe Breakdown of academic impact, for papers by Itaru Naitoh Breakdown of academic impact, for papers by Catherine T. Chung Breakdown of academic impact, for papers by Tatsuru Ikeda Breakdown of academic impact, for papers by Yoshihiko Tokusashi Breakdown of academic impact, for papers by Jorge Baixauli Breakdown of academic impact, for papers by Fujitsugu Matsubara Breakdown of academic impact, for papers by Masanori Nakashima Breakdown of academic impact, for papers by Yuichi Goto
Rankless by CCL
2026