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Updated: Jun 26, 2026
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In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
Published on: March 30, 2015
Imaging of renal leiomyomas
L E Derchi1, N Grenier, G Heinz-Peer
1Radiologia-DICMI, Università di Genova, Genova, Italy. derchi@unige.it
Acta Radiologica (Stockholm, Sweden : 1987)
|January 15, 2009
Summary
Renal leiomyomas are rare kidney tumors. Imaging findings like density, peripheral location, and well-defined margins can suggest this diagnosis, aiding differential diagnosis in asymptomatic patients.
Area of Science:
- Radiology
- Oncology
- Urology
Background:
- Renal leiomyomas are uncommon benign kidney tumors, often found incidentally as small capsular nodules.
- Clinical diagnosis is rare, with limited case reports in imaging literature.
Purpose of the Study:
- To characterize the imaging features of asymptomatic renal leiomyomas.
- To describe findings in eight patients with pathologically confirmed renal leiomyomas.
Main Methods:
- Retrospective review of imaging studies in eight patients with proven renal leiomyomas.
- Modalities included computed tomography (CT), ultrasonography, and magnetic resonance imaging (MRI).
Main Results:
- Lesions varied in size (1.2-13 cm), mostly peripheral, with regular margins.
- CT showed slight hyperdensity before contrast and hypodensity after; MRI revealed heterogeneous structure.
Conclusions:
- Key imaging findings include specific density (hyperdense pre-contrast, lower enhancement post-contrast), peripheral location, and well-defined margins.
- These features, while not pathognomonic, help include renal leiomyoma in the differential diagnosis.
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