MR Imaging of Focal Medullary Sponge Kidney : Case Report

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著者

    • HIDA Tomoyuki
    • Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    • NISHIE Akihiro
    • Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    • ASAYAMA Yoshiki
    • Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    • ISHIGAMI Kousei
    • Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    • FUJITA Nobuhiro
    • Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
    • INOKUCHI Junichi
    • Department of Urology, Graduate School of Medical Sciences, Kyushu University
    • NAITO Seiji
    • Department of Urology, Graduate School of Medical Sciences, Kyushu University
    • ANDO Sadamu
    • Department of Urology, Kitakyushu Municipal Medical Center
    • HONDA Hiroshi
    • Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University

抄録

We present a case of focal medullary sponge kidney (MSK) that mimicked a renal tumor. Evaluation of a patient with history of macrohematuria revealed a left renal mass of 3-cm diameter. T<sub>1</sub>-weighted magnetic resonance (MR) images revealed a mass of mixed intensity protruding toward the renal sinus. On fat-saturated T<sub>2</sub>-weighted MR images, the lesion's remarkable hyperintensity suggested the presence of an aggregation of tiny cysts. On diffusion-weighted MR images, the mass also demonstrated high intensity, and its apparent diffusion coefficient was partly decreased (1.12×10<sup>−3</sup> mm<sup>2</sup>/s). On computed tomography, precontrast images revealed no calcification in the mass. Although slight enhancement was seen in the corticomedullary phase, thick and dense streaks of contrast radiating peripherally were identified in the mass in the excretory phase. Focal MSK was diagnosed. We discuss the potential of MR imaging for diagnosing focal MSK.<br>

収録刊行物

  • Magnetic resonance in medical sciences : MRMS

    Magnetic resonance in medical sciences : MRMS 11(1), 65-69, 2012-03-01

    日本磁気共鳴医学会

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各種コード

  • NII論文ID(NAID)
    10030284856
  • NII書誌ID(NCID)
    AA11648770
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13473182
  • データ提供元
    CJP書誌  J-STAGE 
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