Iraha Yuko

写真a

Researcher Number(JSPS Kakenhi)

50305207
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External Career 【 display / non-display 】

  • 2017.12
    　
    　

    University of the Ryukyus Hospital, associate professor  

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Published Papers 【 display / non-display 】

  • A case of subperiosteal clavicular chondromyxoid fibroma in a 52-year-old man: emphasis on diagnostic utility of GRM1 immunohistochemistry.

    Nakajima S, Iraha Y, Kawamitsu R, Oshiro H, Tome Y, Nishie A, Konishi E, Kawakami F

    Skeletal radiology ( Skeletal Radiology )    2026.09 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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  • A case of subperiosteal clavicular chondromyxoid fibroma in a 52-year-old man: emphasis on diagnostic utility of GRM1 immunohistochemistry.

    Nakajima S, Iraha Y, Kawamitsu R, Oshiro H, Tome Y, Nishie A, Konishi E, Kawakami F

    Skeletal radiology     2026.09 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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  • Temporal evolution of diffusion lacunae into thrombus: A case report with serial MRI and MR-pathologic correlation.

    Fujii S, Iraha Y, Ozaki K

    Acta radiologica open   15 ( 7 ) 20584601261466161 - 20584601261466161   2026.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

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    We report a case demonstrating the evolution of diffusion lacunae (DL) into thrombus, supported by serial MRI and MR-pathologic correlation. A 36-year-old woman with a pregnancy achieved via frozen-thawed embryo transfer presented with complete placenta previa and vaginal bleeding. MRI at 27 weeks of gestation revealed an irregular intraplacental hypointense area on diffusion-weighted imaging corresponding to DL. Follow-up MRI at 32 weeks showed that the DL had become less discernible and appeared hyperintense, similar to the surrounding placenta. On the following day, the patient developed hemorrhagic shock and underwent emergency cesarean delivery, without evidence of placental adherence and decidual deficiency, indicating that the DL represented a placental lake rather than placental lacunae. Histopathologic examination demonstrated a paucity of chorionic villi and thrombus formation with lines of Zahn in the DL area. These findings provide direct evidence that DL may undergo thrombus formation over time, reflecting dynamic changes related to blood flow stasis within the placenta.

  • Temporal evolution of diffusion lacunae into thrombus: A case report with serial MRI and MR-pathologic correlation.

    Fujii S, Iraha Y, Ozaki K

    Acta radiologica open   15 ( 7 ) 20584601261466161 - 20584601261466161   2026.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    　View Summary

    We report a case demonstrating the evolution of diffusion lacunae (DL) into thrombus, supported by serial MRI and MR-pathologic correlation. A 36-year-old woman with a pregnancy achieved via frozen-thawed embryo transfer presented with complete placenta previa and vaginal bleeding. MRI at 27 weeks of gestation revealed an irregular intraplacental hypointense area on diffusion-weighted imaging corresponding to DL. Follow-up MRI at 32 weeks showed that the DL had become less discernible and appeared hyperintense, similar to the surrounding placenta. On the following day, the patient developed hemorrhagic shock and underwent emergency cesarean delivery, without evidence of placental adherence and decidual deficiency, indicating that the DL represented a placental lake rather than placental lacunae. Histopathologic examination demonstrated a paucity of chorionic villi and thrombus formation with lines of Zahn in the DL area. These findings provide direct evidence that DL may undergo thrombus formation over time, reflecting dynamic changes related to blood flow stasis within the placenta.

  • A Case of Myxoid Solitary Fibrous Tumor With Villiform Histology in Pterygopalatine Fossa.

    Kobashigawa S, Nakayoshi H, Maeda H, Iraha Y, Nishie A, Kawakami F

    Pathology international ( Pathology International )  76 ( 5 ) e70123   2026.05 [ Peer Review Accepted ]

    Type of publication: Research paper (other science council materials etc.)

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Other Papers 【 display / non-display 】

  • 異所性妊娠のMRI診断

      87 ( 7 ) 771 - 775   2020.07

     

    DOI CiNii Research

  • 選択的動注化学放射線療法により完全寛解しえたRouviereリンパ節転移を伴った上顎洞癌の1例

    山城 啓太, 安座間 喜明, 平安名 常一, 伊良波 裕子, 戸板 孝文, 村山 貞之, 當山 昌那, 安慶名 信也, 真栄田 裕行, 鈴木 幹男

    Japanese Journal of Radiology ( (公社)日本医学放射線学会 )  35 ( Suppl. ) 85 - 85   2017.02

     

  • 頭頸・口腔 頭頸部がんに対する治療戦略 進行副鼻腔癌に対する超選択的動注化学放射線療法の初期治療経験

    平安名 常一, 戸板 孝文, 有賀 拓郎, 前本 均, 安座間 喜明, 伊良波 裕子, 村山 貞之, 真栄田 裕之, 安慶名 信也, 上原 貴行, 山下 懐, 鈴木 幹男

    日本癌治療学会学術集会抄録集 ( (一社)日本癌治療学会 )  54回   WS80 - 6   2016.10

     

  • 進行副鼻腔癌に対する超選択的動注化学放射線療法の初期治療経験

    平安名 常一, 安座間 喜明, 伊良波 裕子, 有賀 拓郎, 前本 均, 橋本 成司, 戸板 孝文, 村山 貞之, 真栄田 裕行, 上原 貴行, 山下 懐, 鈴木 幹男

    IVR: Interventional Radiology ( (一社)日本インターベンショナルラジオロジー学会 )  31 ( Suppl. ) 129 - 129   2016.04

     

  • 選択的動注化学放射線療法により根治を得たRouviereリンパ節転移を伴う上顎洞癌の1例

    山城 啓太, 平安名 常一, 安座間 喜明, 伊良波 裕子, 山城 恒雄, 木下 亮, 戸板 孝文, 當山 昌那, 安慶名 信也, 真栄田 裕行, 鈴木 幹男, 村山 貞之

    癌と化学療法 ( (株)癌と化学療法社 )  43 ( 2 ) 243 - 246   2016.02

     

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2026.04  -  2029.03 

    Direct: 3,400,000 (YEN)  Overheads: 4,420,000 (YEN)  Total: 1,020,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2026.04  -  2029.03 

    Direct: 3,400,000 (YEN)  Overheads: 4,420,000 (YEN)  Total: 1,020,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2026.04  -  2029.03 

    Direct: 3,400,000 (YEN)  Overheads: 4,420,000 (YEN)  Total: 1,020,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2025.04  -  2028.03 

    Direct: 3,100,000 (YEN)  Overheads: 4,030,000 (YEN)  Total: 930,000 (YEN)

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2025.04  -  2028.03 

    Direct: 3,100,000 (YEN)  Overheads: 4,030,000 (YEN)  Total: 930,000 (YEN)

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