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The Role of CT Imaging in Characterization of Small Renal Masses

Maria Vittoria Bazzocchi1, Carlotta Zilioli1, Vita Ida Gallone1

  • 1Department of Medicine and Surgery, Section of Radiology, University of Parma, Maggiore Hospital, via Gramsci 14, 43126 Parma, Italy.

Diagnostics (Basel, Switzerland)
|February 11, 2023
PubMed

Insights

Computed tomography (CT) helps characterize small renal masses (SRM), distinguishing benign tumors from aggressive cancers. This review details CT signs for accurate small renal mass diagnosis and management.

Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Small renal masses (SRM) are frequently discovered incidentally via imaging.
  • SRMs exhibit diverse histology, ranging from indolent to aggressive renal cell carcinomas and benign tumors.
  • Accurate characterization of SRMs is crucial for appropriate clinical management.

Purpose of the Study:

  • To review the role of computed tomography (CT) in characterizing small renal masses.
  • To elucidate key CT features aiding in the differentiation of SRM subtypes.
  • To provide guidance for radiologists and clinicians facing diagnostic dilemmas with indeterminate SRMs.

Main Methods:

  • Review of CT imaging features for small renal masses.
  • Assessment of specific CT parameters: presence of fat, enhancement patterns.
  • Analysis of CT signs for differentiating tumor subtypes and identifying aggressive lesions.

Main Results:

  • CT imaging is pivotal in characterizing SRMs, though some remain indeterminate.
  • Key CT findings include fat content and enhancement characteristics.
  • Specific CT signs can help differentiate benign from malignant renal tumors and classify subtypes.

Conclusions:

  • CT characterization is essential for managing small renal masses.
  • Understanding detailed CT signs improves diagnostic accuracy for SRMs.
  • This review aids in interpreting complex small renal mass imaging findings.
Keywords:
CT imagingrenal cell carcinoma (RCC)small renal masses (SRMs)

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