Rumi Itoyama

952 total citations
40 papers, 319 citations indexed

About

Rumi Itoyama is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Rumi Itoyama has authored 40 papers receiving a total of 319 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Oncology, 20 papers in Surgery and 10 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Rumi Itoyama's work include Pancreatic and Hepatic Oncology Research (15 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (11 papers) and Hepatocellular Carcinoma Treatment and Prognosis (7 papers). Rumi Itoyama is often cited by papers focused on Pancreatic and Hepatic Oncology Research (15 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (11 papers) and Hepatocellular Carcinoma Treatment and Prognosis (7 papers). Rumi Itoyama collaborates with scholars based in Japan and Egypt. Rumi Itoyama's co-authors include Katsunori Imai, Yo‐ichi Yamashita, Hirohisa Okabe, Yosuke Nakao, Akira Chikamoto, Toshihiko Yusa, Shigeki Nakagawa, Hideo Baba, Hiromitsu Hayashi and Tatsunori Miyata and has published in prestigious journals such as SHILAP Revista de lepidopterología, Cancer Research and Annals of Surgical Oncology.

In The Last Decade

Rumi Itoyama

31 papers receiving 317 citations

Peers

Countries citing papers authored by Rumi Itoyama

Since Specialization

Citations

This map shows the geographic impact of Rumi Itoyama'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 Rumi Itoyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Rumi Itoyama more than expected).

Fields of papers citing papers by Rumi Itoyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Rumi Itoyama. 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 Rumi Itoyama. The network helps show where Rumi Itoyama may publish in the future.

Co-authorship network of co-authors of Rumi Itoyama

This figure shows the co-authorship network connecting the top 25 collaborators of Rumi Itoyama. A scholar is included among the top collaborators of Rumi Itoyama 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 Rumi Itoyama. Rumi Itoyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Conversion Surgery Performed Following Durvalumab Combined With Gemcitabine and Cisplatin in Cholangiocarcinoma: A Case Report 2025 ·In Vivo ·(unknown), Rin Yamada, (unknown), (unknown), Rumi Itoyama, Hiromitsu Hayashi, Yoshihiro Komohara, Masaaki Iwatsuki	0
2	Synchronous Gallbladder Cancer and Distal Cholangiocarcinoma Without Pancreaticobiliary Maljunction: A Case Report With Literature Review 2025 ·Anticancer Research ·(unknown), Yuki Kitano, Tatsunori Miyata, (unknown), (unknown), Rumi Itoyama, Shigeki Nakagawa, (unknown), Hiromitsu Hayashi, Masaaki Iwatsuki	0
3	Rising pseudocysts in the hepatoduodenal ligament caused by a ruptured intraductal papillary mucinous neoplasm with surgical treatment 2024 ·Journal of Gastroenterology and Hepatology ·R Nakashima, Yuki Kitano, Hiroyuki Okabe, (unknown), (unknown), Rumi Itoyama, (unknown), Kosuke Mima, Hidetaka Hayashi	0
4	Impairment of perioperative activities of daily living is associated with poor prognosis following pancreatectomy for pancreatic cancer 2024 ·Langenbeck s Archives of Surgery ·(unknown), Kosuke Mima, Hiromitsu Hayashi, (unknown), (unknown), (unknown), Rumi Itoyama, Shigeki Nakagawa, Hirohisa Okabe, (unknown)	1
5	A surgical resection of hepatic granuloma mimicking intrahepatic cholangiocarcinoma: a case report 2023 ·International Cancer Conference Journal ·(unknown), Katsunori Imai, Yosuke Nakao, Hiro Nakamura, Takayoshi Kaida, (unknown), Rumi Itoyama, Hidetoshi Nitta, Hiromitsu Hayashi, (unknown), Yoshiki Mikami, Hideo Baba	0
6	Efficacy of Ring Drape and Unused Sterile Instruments for Incisional SSI After Hepatectomy 2022 ·Anticancer Research ·Toshihiko Yusa, Yo‐ichi Yamashita, Hidetoshi Nitta, Yosuke Nakao, Rumi Itoyama, Yuki Kitano, Takayoshi Kaida, Tatsunori Miyata, Kosuke Mima, Katsunori Imai, Hiromitsu Hayashi, Hideo Baba	0
7	IL-1β derived from mixed-polarized macrophages activates fibroblasts and synergistically forms a cancer-promoting microenvironment 2022 ·Gastric Cancer ·Jun Zhang, Lingfeng Fu, Noriko Yasuda‐Yoshihara, Atsuko Yonemura, Feng Wei, Luke Bu, (unknown), Takahiko Akiyama, Fumimasa Kitamura, Tadahito Yasuda, Takashi Semba, Tomoyuki Uchihara, Rumi Itoyama, Kohei Yamashita, Kojiro Eto, Shiro Iwagami, (unknown), Yoshihiro Komohara, Hideo Baba, Takatsugu Ishimoto	15
8	Risk factors for lymph node metastasis in patients with pancreatic neuroendocrine neoplasms 2022 ·World Journal of Clinical Oncology ·Yosuke Nakao, Hiromitsu Hayashi, Yo‐ichi Yamashita, (unknown), Kazuki Matsumura, Norio Uemura, Fumimasa Kitamura, Rumi Itoyama, Toshihiko Yusa, Katsunobu Taki, Tatsunori Miyata, Takaaki Higashi, Shigeki Nakagawa, Hirohisa Okabe, Katsunori Imai, Hideo Baba	2
9	A case of primary carcinosarcoma of the liver with combined hepatocellular carcinoma and cholangiocarcinoma 2021 ·Clinical Journal of Gastroenterology ·(unknown), Katsunori Imai, Yosuke Nakao, (unknown), (unknown), Rikako Kato, Rumi Itoyama, Toshihiko Yusa, Takaaki Higashi, Hiromitsu Hayashi, (unknown), Yo‐ichi Yamashita, Yoshiki Mikami, Hideo Baba	2
10	MicroRNA-25 Exerts an Oncogenic Function by Regulating the Ubiquitin Ligase Fbxw7 in Hepatocellular Carcinoma 2021 ·Annals of Surgical Oncology ·Hatem A. El‐mezayen, Kensuke Yamamura, Toshihiko Yusa, Yosuke Nakao, Norio Uemura, Fumimasa Kitamura, Rumi Itoyama, Takanobu Yamao, Takaaki Higashi, Hiromitsu Hayashi, Katsunori Imai, Akira Chikamoto, Yo‐ichi Yamashita, Hideo A. Baba	11
11	High ARHGEF2 (GEF-H1) Expression is Associated with Poor Prognosis Via Cell Cycle Regulation in Patients with Pancreatic Cancer 2021 ·Annals of Surgical Oncology ·Yosuke Nakao, Shigeki Nakagawa, Yo‐ichi Yamashita, Naoki Umezaki, (unknown), Yoko Ogata, Noriko Yasuda‐Yoshihara, Rumi Itoyama, Toshihiko Yusa, Kohei Yamashita, Tatsunori Miyata, Hirohisa Okabe, Hiromitsu Hayashi, Katsunori Imai, Hideo Baba	8
12	Frailty is associated with poor prognosis after resection for pancreatic cancer 2021 ·International Journal of Clinical Oncology ·Kosuke Mima, Hiromitsu Hayashi, Shigeki Nakagawa, Takashi Matsumoto, Shotaro Kinoshita, (unknown), Fumimasa Kitamura, Norio Uemura, Yosuke Nakao, Rumi Itoyama, Takayoshi Kaida, Katsunori Imai, Yo‐ichi Yamashita, Hideo Baba	22
13	Prognostic Impact of Coagulation Activity in Patients Undergoing Curative Resection for Pancreatic Ductal Adenocarcinoma 2020 ·In Vivo ·(unknown), Hiromitsu Hayashi, Norio Uemura, Zhao Liu, Takaaki Higashi, Takanobu Yamao, Fumimasa Kitamura, (unknown), Toshihiko Yusa, Rumi Itoyama, Katsunori Imai, Yo‐ichi Yamashita, Hideo Baba	5
14	Prognostic Value of the Preoperative Tumor Marker Index in Resected Pancreatic Ductal Adenocarcinoma: A Retrospective Single-Institution Study 2020 ·Annals of Surgical Oncology ·Tatsunori Miyata, Hiromitsu Hayashi, Yo‐ichi Yamashita, (unknown), Yosuke Nakao, Rumi Itoyama, Takanobu Yamao, Masayo Tsukamoto, Hirohisa Okabe, Katsunori Imai, Akira Chikamoto, Takatoshi Ishiko, Hideo A. Baba	10
15	A case of inferior right hepatic vein–right hepatic vein bypass with interrupted inferior vena cava compressed by focal nodular hyperplasia in caudate lobe 2020 ·International Cancer Conference Journal ·Toshihiko Yusa, Hirohisa Okabe, Yo‐ichi Yamashita, Hidetoshi Nitta, Yosuke Nakao, Rumi Itoyama, Takanobu Yamao, Takaaki Higashi, Kensuke Yamamura, Katsunori Imai, Hiromitsu Hayashi, Hideo Baba	0
16	A case of chest wall recurrence of hilar cholangiocarcinoma 10 years after R1 surgery with positive ductal margin of carcinoma in situ 2020 ·International Cancer Conference Journal ·(unknown), Hirohisa Okabe, Yo‐ichi Yamashita, Rumi Itoyama, Takanobu Yamao, Naoki Umezaki, Tatsunori Miyata, Takaaki Higashi, Kensuke Yamamura, Shigeki Nakagawa, Katsunori Imai, Hiromitsu Hayashi, Akira Chikamoto, Hideo Baba	1
17	Clinical Significance of PD-L1 Expression in Both Cancer and Stroma Cells of Cholangiocarcinoma Patients 2019 ·Annals of Surgical Oncology ·Yuki Kitano, Yo‐ichi Yamashita, Yosuke Nakao, Rumi Itoyama, Toshihiko Yusa, Naoki Umezaki, Masayo Tsukamoto, Takanobu Yamao, Tatsunori Miyata, Shigeki Nakagawa, Hirohisa Okabe, Katsunori Imai, Akira Chikamoto, Takatoshi Ishiko, Hideo Baba	33
18	Clinical role of serum programmed death ligand 1 in patients with hepatocellular carcinoma: Where does it come from? 2019 ·Surgery Today ·Hatem A. El‐mezayen, Hirohisa Okabe, Yoshifumi Baba, Toshihiko Yusa, Rumi Itoyama, Yosuke Nakao, Takanobu Yamao, (unknown), Masayo Tsukamoto, Yuki Kitano, Tatsunori Miyata, Kota Arima, Hiromitsu Hayashi, Katsunori Imai, Akira Chikamoto, Yo‐ichi Yamashita, Hideo Baba	3
19	A case of acute perforated cholecystitis with intracystic tumor thrombus of hepatocellular carcinoma 2018 ·International Cancer Conference Journal ·Yosuke Nakao, Hirohisa Okabe, Yo‐ichi Yamashita, Rumi Itoyama, Toshihiko Yusa, Yuki Kitano, Kota Arima, Tatsunori Miyata, Shigeki Nakagawa, Katsunori Imai, Akira Chikamoto, Hideo Baba	0
20	Clinical role of fludeoxyglucose (18F) positron emission tomography/computed tomography (18F-FDG PET/CT) in patients with pancreatic neuroendocrine tumors 2018 ·Surgery Today ·Takashi Matsumoto, Hirohisa Okabe, Yo‐ichi Yamashita, Toshihiko Yusa, Rumi Itoyama, Yosuke Nakao, Takanobu Yamao, (unknown), Masayo Tsukamoto, Yuki Kitano, Tatsunori Miyata, Kota Arima, Hidetoshi Nitta, Hiromitsu Hayashi, Katsunori Imai, Akira Chikamoto, Hideo Baba	16

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.

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