Researcher profile · Semantic Scholar

Koh-ichi Ohshima

h-index: 13
Works: 33
Citations: 918

Most-cited papers

Ocular adnexal IgG4‐related disease has uniform clinicopathology
Yasuharu Sato, Koh-ichi Ohshima, K. Ichimura, Masakazu Sato +6 more
2008Pathology international (Print)284 citations
Semantic Scholar
Location and frequency of lesions in patients with IgG4-related ophthalmic diseases
Y. Sogabe, Koh-ichi Ohshima, A. Azumi, M. Takahira +4 more
2014Graefe's Archive for Clinical and Experimental Ophthalmology143 citations
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The usefulness of infraorbital nerve enlargement on MRI imaging in clinical diagnosis of IgG4-related orbital disease
Koh-ichi Ohshima, Y. Sogabe, Yasuharu Sato
2012Japanese Journal of Ophthalmology72 citations
Semantic Scholar
IgG4-related disease in the Japanese population: a genome-wide association study.
C. Terao, M. Ota, T. Iwasaki, M. Shiokawa +65 more
2019The Lancet Rheumatology65 citations
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IgG4-related disease involving the sclera
K. Ohno, Yasuharu Sato, Koh-ichi Ohshima, K. Takata +6 more
2012Modern Rheumatology47 citations
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Ocular adnexal IgG4-producing mucosa-associated lymphoid tissue lymphoma mimicking IgG4-related disease.
Yasuharu Sato, Koh-ichi Ohshima, K. Takata, Xin-Gang Huang +3 more
2012Journal of Clinical and Experimental Hematopathology47 citations Open access
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Pathological findings of infraorbital nerve enlargement in IgG4-related ophthalmic disease
Y. Sogabe, K. Miyatani, R. Goto, Gengo Ishii +2 more
2012Japanese Journal of Ophthalmology44 citations
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A subset of ocular adnexal marginal zone lymphomas may arise in association with IgG4-related disease
K. Ohno, Yasuharu Sato, Koh-ichi Ohshima, K. Takata +8 more
2015Scientific Reports40 citations Open access
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Clinical features and symptoms of IgG4-related ophthalmic disease: a multicenter study
H. Goto, Shun-ichiro Ueda, R. Nemoto, Koh-ichi Ohshima +7 more
2021Japanese Journal of Ophthalmology37 citations
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A case of IgG4-related dacryoadenitis that regressed without systemic steroid administration.
Koh-ichi Ohshima, Yasuharu Sato, T. Yoshino
2013Journal of Clinical and Experimental Hematopathology22 citations Open access
Semantic Scholar
Primary sebaceous carcinoma of the lacrimal gland treated by carbon ion radiotherapy
N. Yamamoto, J. Mizoe, A. Hasegawa, Koh-ichi Ohshima +1 more
2003International Journal of Clinical Oncology19 citations Open access
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Clinicopathological investigation of a retinoblastoma eye enucleated after vitreous surgery with melphalan perfusion
Koh-ichi Ohshima, Taku Kaneko, S. Takagi, A. Kaneko +2 more
2009Japanese Journal of Ophthalmology18 citations
Semantic Scholar
Follicular dendritic cell tumor as an unknown primary tumor
Y. Yakushijin, Hisaharu Shikata, K. Kito, Koh-ichi Ohshima +4 more
2007International Journal of Clinical Oncology13 citations
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A study on nm23-H1 expression in diffuse large B-cell lymphoma that was treated with CyclOBEAP plus rituximab therapy
N. Niitsu, J. Tamaru, T. Yoshino, N. Nakamura +4 more
2011Annals of Hematology11 citations
Semantic Scholar
A case of conjunctival follicular lymphoma mimicking mucosa-associated lymphoid tissue lymphoma.
Lamia Abd Al-Kader, Yasuharu Sato, K. Takata, Koh-ichi Ohshima +4 more
2013Journal of Clinical and Experimental Hematopathology10 citations Open access
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Diffuse infiltrating retinoblastoma invading subarachnoid space
S. Kase, Kazuhiko Yoshida, Shigenobu Suzuki, Koh-ichi Ohshima +2 more
2011Clinical Ophthalmology10 citations Open access
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A family of familial hypercholesterolemia with cerebral infarction and without coronary heart disease. An unusual case with corneal opacity, polyneuropathy and carpal tunnel syndrome in the family: therapy with probucol and tocopherol nicotinate.
Y. Ihara, K. Nobukuni, R. Namba, K. Kamisaka +8 more
19918 citations
Semantic Scholar
Upregulated Expression of Activation-Induced Cytidine Deaminase in Ocular Adnexal Marginal Zone Lymphoma with IgG4-Positive Cells
Asami Nishikori, Yoshito Nishimura, R. Shibata, Koh-ichi Ohshima +5 more
2021International Journal of Molecular Sciences7 citations Open access
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Neurilemoma of the Bulbar Conjunctiva
Koh-ichi Ohshima, M. Kitada, I. Yamadori
2007Japanese Journal of Ophthalmology7 citations
Semantic Scholar
[A case of lacrimal gland malignant lymphoma, associated with Sjögren's syndrome].
Koh-ichi Ohshima, N. Matsuo, S. Yokoe, T. Yoshino +1 more
1991Nippon Ganka Gakkai zasshi6 citations
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Treatment outcomes of IgG4-producing marginal zone B-cell lymphoma: a retrospective case series
Y. Sumii, N. Asada, Yasuharu Sato, Koh-ichi Ohshima +11 more
2020International journal of hematology5 citations
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[The cytopathological features of the pseudohypopyon in a patient with acute monoblastic leukemia].
Koh-ichi Ohshima, H. Konishi, N. Matsuo, K. Hayashi +3 more
1992Nippon Ganka Gakkai zasshi3 citations
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Orbital inflammation caused by a spirurid larva type X showing small speckles on magnetic resonance imaging
Koh-ichi Ohshima, I. Yamadori, M. Harada, S. Suguri +1 more
2009Japanese Journal of Ophthalmology1 citations
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[A caruncular oxyphilic adenoma with an appearance of apocrine type secretion].
Koh-ichi Ohshima, K. Taguchi, Y. Fujimoto, Nobuhiko Matsuo
1992Nippon Ganka Gakkai zasshi1 citations
Semantic Scholar
A case of ciliary body leiomyoma penetrating the sclera
Hiroshi Goto, Koh-ichi Ohshima
2025American Journal of Ophthalmology Case Reports0 citations Open access
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infiltrating retinoblastoma invading subarachnoid
Clin Ophthalmol5861-863, .pdf, S. Kase, Kazuhiko Yoshida +4 more
20230 citations
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Scientific Reviewers
K. Abe, T. Akagi, Masayuki Akimoto, Hideo Akiyama +201 more
2017Japanese Journal of Ophthalmology0 citations
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Scientific Reviewers
Toshiaki Abe, T. Akagi, Masayuki Akimoto, S. Amano +207 more
2016Japanese Journal of Ophthalmology0 citations
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Scientific Reviewers
Toshiaki Abe, Masayuki Akimoto, S. Amano, Hiroyuki Arai +215 more
2013Japanese Journal of Ophthalmology0 citations Open access
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Case Study A Case of IgG 4-Related Dacryoadenitis that Regressed Without Systemic Steroid Administration
Koh-ichi Ohshima, Yasuharu Sato, T. Yoshino
20130 citations
Semantic Scholar
Scientific Reviewers
Haruki Abe, Toshiaki Abe, Makoto Aihara, S. Amano +201 more
2012Japanese Journal of Ophthalmology0 citations
Semantic Scholar
A case of secondary orbital rhabdomyosarcoma invading from the paranasal sinus and presenting with epiphora as an initial symptom
N. Yoshida, Koh-ichi Ohshima, Y. Miyazaki, K. Okuda +3 more
19960 citations
Semantic Scholar
[The immunohistochemical analysis of necropsy eyes and brain lesion in a case of intraocular and brain malignant lymphoma].
Koh-ichi Ohshima, N. Matsuo, K. Shirakawa, T. Yoshino +1 more
1990Nippon Ganka Gakkai zasshi0 citations
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K. Takata

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