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Kidney and Urinary Tract Lesions

  • Dai Inoue
  • Mitsuhiro Kawano
  • Kazunori Yamada
  • Osamu Matsui
  • Toshifumi Gabata
Chapter

Abstract

Contrast-enhanced CT is useful in the evaluation of kidney and urinary tract lesions in IgG4-RD, but the imaging findings differ according to whether the lesion is within the renal parenchyma or ureteropelvic in location. Contrast-enhanced CT typically shows multiple poorly enhanced areas within the renal parenchyma, and in some cases renal swelling or a solitary renal mass is evident. In the ureteropelvic region, the affected part is frequently recognized as a thickened wall. The lumen of the affected part usually remains smooth. Typical cases of IgG4-RD are relatively easy to suspect and diagnose, but in atypical cases the clinical data and histopathological findings must be evaluated comprehensively before a definitive diagnosis can be rendered. Distinction between IgG4-RD and malignancies is essential in all cases, and it is therefore inappropriate to make a facile diagnosis in the absence of histopathology.

Keywords

Renal Pelvis Renal Parenchyma Renal Lesion Retroperitoneal Fibrosis Excretory Phase 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Japan 2014

Authors and Affiliations

  • Dai Inoue
    • 1
    • 2
  • Mitsuhiro Kawano
    • 3
  • Kazunori Yamada
    • 3
  • Osamu Matsui
    • 1
  • Toshifumi Gabata
    • 1
  1. 1.Department of RadiologyKanazawa UniversityKanazawaJapan
  2. 2.Department of RadiologyToyama Prefectural Central HospitalToyama CityJapan
  3. 3.Division of RheumatologyKanazawa University HospitalKanazawaJapan

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