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The complete echographic evaluation of solid renal masses.

Journal of Clinical Ultrasound : JCU

|December 1, 1978

Summary

Ultrasound (US) imaging for solid kidney masses should extend beyond the mass. Comprehensive US can reveal tumor spread to the inferior vena cava and liver metastases, aiding diagnosis.

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Area of Science:

Medical Imaging
Nephrology
Oncology

Background:

Solid intrarenal masses necessitate thorough evaluation beyond the primary lesion.
Standard ultrasound (US) protocols may not encompass all potential metastatic sites.
Differentiating primary renal tumors from metastatic disease is clinically significant.

Purpose of the Study:

To highlight the importance of extended ultrasound evaluation in cases of solid intrarenal masses.
To demonstrate the capability of modern grayscale ultrasound in detecting tumor extension and metastasis.
To outline comprehensive scanning techniques for evaluating potential metastatic disease.

Main Methods:

Utilizing modern commercial grayscale ultrasound equipment.
Performing extended scans including the inferior vena cava, liver, and retroperitoneum.
Incorporating prone scans for suprarenal regions and contralateral kidney assessment.
Employing supine scans for inferior vena cava, liver, and retroperitoneal evaluation.

Main Results:

Ultrasound can effectively demonstrate tumor extension into the inferior vena cava.
Metastatic disease to the liver is detectable with advanced grayscale ultrasound.
Multiple solid intrarenal masses suggest metastatic disease or angiomyolipomas.
Retroperitoneal lymphadenopathy or adrenal masses alongside intrarenal masses indicate metastasis.

Conclusions:

Comprehensive ultrasound protocols are crucial for evaluating solid intrarenal masses.
Extended ultrasound imaging aids in detecting tumor vascular invasion and distant metastasis.
Specific scanning techniques improve the detection of metastatic disease to the kidney and surrounding structures.

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