Faculty Profiles - KATSUMI Tatsuya

写真a

KATSUMI Tatsuya

Organization

University Medical and Dental Hospital Dermatology Specially Appointed Assistant Professor

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Degree

学士 ( 2015.3 金沢医科大学 )

Research History (researchmap)

新潟大学医歯学総合病院皮膚科助教

2023.10

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Research History

Niigata University Dermatology, University Medical and Dental Hospital Specially Appointed Assistant Professor

2024.10

Professional Memberships

発汗学会

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皮膚外科学会

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皮膚悪性腫瘍学会

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日本皮膚科学会

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日本研究皮膚科学会

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Papers

Widespread imiquimod-induced psoriasis like eruption: case report and analysis of mast cell infiltration. International journal

Tatsuya Katsumi, Ryota Hayashi, Shingo Takei, Manon Okamura, Yuka Tsutsui, Osamu Ansai, Akito Hasegawa, Yu Matsui, Tatsuya Takenouchi, Riichiro Abe

Clinical and experimental dermatology 2024.12

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Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1093/ced/llae527

PubMed

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Reevaluating hybrid neurofibroma/schwannoma: Predominance of schwannoma features despite CD34 positivity and initial neurofibroma diagnosis. International journal

Tatsuya Katsumi, Ryota Hayashi, Shingo Takei, Osamu Ansai, Sumiko Takatsuka, Tatsuya Takenouchi, Kyota Saito, Kazuaki Suda, Kosuke Yoshihara, Takahiro Nagai, Shujiro Okuda, Takaya Fukumoto, Shin-Ichi Ansai, Anna Nakamura, Koji Katsuumi, Takashi Ariizumi, Akira Ogose, Hiroyuki Kawashima, Riichiro Abe

The Journal of dermatology 51 ( 11 ) 1461 - 1469 2024.11

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Schwannomas consist of both high-cellularity regions (Antoni A area) and hypocellular regions (Antoni B area) in histopathological findings. Neurofibromas characteristically consist of CD34 positive spindle cells with thin, wavy, nuclei and wavy collagen bands. Previous reports have described segments of schwannomas with neurofibroma features as hybrid tumors, although hybrid tumors were diagnosed based on partial CD34 positivity in many previous reports. On the other hand, the Antoni B area of some schwannomas was reported to be positive for CD34. Therefore, the definition of a hybrid tumor has not been clear. The objective of this study was to determine whether only CD34 positive findings in schwannomas could be used to define a hybrid tumor. In the analysis of our patient with schwannomatosis caused by a novel LZTR1 germline mutation, part of the tumor had CD34 positive hypocellular regions. These regions contained no thin, wavy, nuclei, indicating an Antoni B area. Laser microdissection was used to investigate the genetic background and differences in molecular mechanisms between CD34 positive and CD34 negative regions. All mutations identified in CD34 positive regions were also found in CD34 negative regions. Our data could not clear the genetic background of Antoni B which was CD34 positive area. We then reviewed the pathologies of 66 sporadic schwannomas. Histopathological examinations of all schwannomas revealed the absence of thin, wavy, nuclei and wavy collagen bands, and no hybrid tumors were found in any of the cases. Ten of 66 patients were randomly selected for CD34 immunostaining and positivity was found in all cases. Our data suggest that it is difficult to distinguish schwannomas by staining for CD34 alone, as Antoni B areas can also be positive for CD34. Therefore, CD34 staining alone should not be used to diagnose hybrid tumors in patients with schwannomas.

DOI： 10.1111/1346-8138.17343

PubMed

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Severe atopic dermatitis with cutis laxa caused by a variant in the ELN gene. International journal

Tatsuya Katsumi, Ryota Hayashi, Shingo Takei, Rei Yokoyama, Osamu Ansai, Satoru Shinkuma, Riichiro Abe

JAAD case reports 46 8 - 10 2024.4

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DOI： 10.1016/j.jdcr.2024.01.029

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Atypical epidermolytic palmoplantar keratoderma is a minimal phenotypic variant of epidermolytic ichthyosis: A new insight from ultrastructural findings. Reviewed International journal

Osamu Ansai, Ryota Hayashi, Tatsuya Katsumi, Kentaro Okuyama, Shinsuke Shibata, Satoru Shinkuma, Masaaki Ito, Riichiro Abe

Journal of the European Academy of Dermatology and Venereology : JEADV 2023.7

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DOI： 10.1111/jdv.19357

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Extra-palmoplantar skin lesions of palmoplantar keratoderma with deafness caused by a mitochondrial mutation. International journal

Tatsuya Katsumi, Ryota Hayashi, Rei Yokoyama, Osamu Ansai, Shuji Izumi, Tatsuya Yamagishi, Arata Horii, Riichiro Abe

The Journal of dermatology 48 ( 10 ) E510-E511 2021.10

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DOI： 10.1111/1346-8138.16064

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Massive perianal skin ulcer due to long-standing amoebic infection in an HIV-negative, heterosexual man. International journal

Jin Sasaki, Hiroki Fujikawa, Tatsuya Katsumi, Yuki Saito, Akihiko Yuki, Hitoshi Kameyama, Masato Nakano, Yoshifumi Shimada, Toshifumi Wakai, Riichiro Abe

The Journal of dermatology 48 ( 4 ) e198-e200 2021.4

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DOI： 10.1111/1346-8138.15800

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Mycoplasma pneumoniae-associated Stevens-Johnson syndrome: characteristic histological features of mucosal lesion. International journal

T Katsumi, N Hama, Y Iwai, K Kimura, O Ansai, T Suzuki, R Abe

Journal of the European Academy of Dermatology and Venereology : JEADV 35 ( 1 ) e56-e57 2021.1

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DOI： 10.1111/jdv.16796

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非イオン性ヨード造影剤の血管外漏出に対して切開ドレナージを施行した2例

勝見達也, 森修一, 高塚純子, 竹之内辰也

臨床皮膚科 74 ( 11 ) 859 - 863 2020.10

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Language：Japanese Publisher：(株)医学書院

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2020&ichushi_jid=J01559&link_issn=&doc_id=20200929210006&doc_link_id=10.11477%2Fmf.1412206177&url=https%3A%2F%2Fdoi.org%2F10.11477%2Fmf.1412206177&type=%E5%8C%BB%E6%9B%B8.jp_%E3%82%AA%E3%83%BC%E3%83%AB%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00024_2.gif
皮膚外科手術における手術室運用システムより速く、より安全に

勝見達也, 森修一, 竹本景太, 結城大介, 高塚純子, 竹之内辰也

日本皮膚科学会雑誌 130 ( 8 ) 1805 - 1810 2020.7

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2020&ichushi_jid=J01174&link_issn=&doc_id=20200804290004&doc_link_id=10.14924%2Fdermatol.130.1805&url=https%3A%2F%2Fdoi.org%2F10.14924%2Fdermatol.130.1805&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_2.gif
PET-CTでリンパ節転移を疑った皮膚型皮膚平滑筋肉腫の1例

勝見達也, 藤川大基, 横山令, 結城明彦, 親松宏, 阿部理一郎

Skin Cancer 34 ( 1 ) 46 - 49 2019.6

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Language：Japanese Publisher：(一社)日本皮膚悪性腫瘍学会

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2019&ichushi_jid=J02197&link_issn=&doc_id=20190703420008&doc_link_id=10.5227%2Fskincancer.34.46&url=https%3A%2F%2Fdoi.org%2F10.5227%2Fskincancer.34.46&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_2.gif
骨病変を有したLangerhans細胞組織球症の3例

勝見達也, 新熊悟, 荻根沢真帆子, 河合亨, 加畑雄大, 折目真理, 伊藤明子, 久保暢大, 岩渕晴子, 今井千速, 阿部理一郎

臨床皮膚科 73 ( 1 ) 78 - 84 2019.1

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Other Link： https://search.jamas.or.jp/default/link?pub_year=2019&ichushi_jid=J01559&link_issn=&doc_id=20190201020017&doc_link_id=10.11477%2Fmf.1412205622&url=https%3A%2F%2Fdoi.org%2F10.11477%2Fmf.1412205622&type=%E5%8C%BB%E6%9B%B8.jp_%E3%82%AA%E3%83%BC%E3%83%AB%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00024_2.gif
Chondrolipomaの1例

勝見達也, 藤川大基, 木村浄土, 萩原理沙, 結城明彦, 阿部理一郎, 下村裕

皮膚科の臨床 60 ( 12 ) 1952 - 1953 2018.11

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9歳男児。4年前より左背部に皮下腫瘤を自覚し、近医にて脂肪腫疑いで経過観察されていたが、増大傾向があるため当科紹介受診となった。受診時、左背部に6×4cm大の弾性軟で可動性のある皮下腫瘤を認め、MRIでは脂肪腫に矛盾しない所見であった。全身麻酔下に腫瘤摘出を行い、病理組織学的に腫瘤は線維性被膜に囲まれ、成熟脂肪細胞の分葉状の増殖、線維組織の増殖を認めた。また、その中に一部島状の軟骨組織を認めた。以上より、chondrolipomaと診断した。術後再発は認めていない。

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初発部位とは異なる部位に皮疹が生じた限局性水疱性類天疱瘡(LBP)の2例

長谷川瑛人, 新熊悟, 勝見達也, 阿部理一郎, 伊藤薫, 笠原直美, 池滝勝史, 氏家英之

日本皮膚科学会雑誌 129 ( 4 ) 551 - 551 2019.4

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ランゲルハンス組織球症の2例

勝見達也, 新熊悟, 荻根沢真帆子, 河合亨, 加畑雄大, 出口登希子, 会沢敦子, 折目真理, 伊藤明子, 阿部理一郎, 久保暢大, 今井千速

日本皮膚科学会雑誌 128 ( 4 ) 615 - 615 2018.4

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