MR Imaging of Focal Medullary Sponge Kidney: Case Report

• 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. T₁-weighted magnetic resonance (MR) images revealed a mass of mixed intensity protruding toward the renal sinus. On fat-saturated T₂-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 (1.12×10⁻³ mm²/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

  Magnetic Resonance in Medical Sciences 11 (1), 65-69, 2012

  日本磁気共鳴医学会

キーワード

• CT
• diffusion-weighted imaging
• medullary sponge kidney
• MRI
• MR urography

詳細情報

• CRID: 1390001205194364672
• NII論文ID: 10030284856
• NII書誌ID: AA11648770
• DOI: 10.2463/mrms.11.65
• COI: 1:STN:280:DC%2BC38vpslKqtA%3D%3D
• ISSN: 18802206
• ISSN: 13473182
• PubMed: 22450389
• Web Site: https://www.jstage.jst.go.jp/article/mrms/11/1/11_1_65/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2012339530
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • PubMed
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可