• Valeria Panebianco
  • Jurgen J. Fütterer
Part of the A-Z Notes in Radiological Practice and Reporting book series (AZRPR)

Renal Adenoma

  • A renal adenoma is a benign renal neoplasm. It is traditionally classified into three distinct types (renal papillary adenoma, renal tubular adenoma, and alveolar renal adenoma). The papillary type is the commonest variant with an estimated prevalence of 40 % in patients older than 70 years of age.

  • Such lesions are histologically indistinguishable from larger carcinomas more commonly encountered in the kidneys, and they often have histologic grades indicating a definite potential for malignant behavior. Accordingly, most investigators believe that these lesions should be regarded as carcinomas in an early stage of evolution and should not be classified as adenomas.

  • On CT, these small renal tumors are usually well defined and homogeneous in appearance. Less commonly, they show marginal irregularity, heterogeneity, or central calcification, findings that may suggest pathologically high-grade tumors. These lesions are best managed with partial nephrectomy, provided that the...


Renal Cell Carcinoma Renal Vein Autosomal Dominant Polycystic Kidney Disease Renal Cyst Acute Pyelonephritis 
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.

Suggested Reading

  1. Israel GM, Bosniak MA. 2005. An update of the Bosniak renal cyst classification system. Urology; 66:484CrossRefPubMedGoogle Scholar
  2. Balci NC, Semelka RC, Patt RH, et al. 1999. Complex renal cysts: findings on MR imaging. AJR Am J Roentgenol; 172:1495.CrossRefPubMedGoogle Scholar
  3. Vivas I, Nicolás AI, Velázquez P et al. 2000. Retroperitoneal fibrosis: typical and atypical manifestations. Br J Radiol; 73: 214–222CrossRefPubMedGoogle Scholar
  4. Arancibia MF, Bolenz C, Michel MS et al. 2007. The modern management of upper tract urothelial cancer: surgical treatment. BJU Int; 99:978–981CrossRefPubMedGoogle Scholar
  5. Israel GM, Hindman N, Hecht E et al. 2005. The use of opposed-phase chemical shift MRI in the diagnosis of renal angiomyolipomas. AJR Am J Roentgenol; 184:1868–72CrossRefPubMedGoogle Scholar
  6. Browne RF, Meehan CO, Colville J et al. 2005 Transitional cell carcinoma of the upper urinary tract: spectrum of imaging findings. RadioGraphics; 25:1609–1627CrossRefPubMedGoogle Scholar

Copyright information

© Springer-Verlag Italia 2015

Authors and Affiliations

  • Valeria Panebianco
    • 1
  • Jurgen J. Fütterer
    • 2
    • 3
  1. 1.Department of Radiological Sciences, Oncology and PathologySapienza University of RomeRomeItaly
  2. 2.Department of Radiology and Nuclear MedicineRadboudumcNijmegenThe Netherlands
  3. 3.MIRA Institute for Biomedical Technology and Technical MedicineUniversity of TwenteEnschedeThe Netherlands

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