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Renal lymphoma: radiologic-pathologic correlation of 21 cases
Radiology
|September 1, 1982
Summary
Radiologic findings of renal lymphoma depend on how the cancer spreads and grows within the kidney. Early interstitial growth can make radiographic detection difficult, while later expansile growth mimics other renal tumors.
Area of Science:
- Radiology
- Pathology
- Oncology
Background:
- Renal lymphoma is a rare malignancy.
- Understanding its radiologic presentation is crucial for diagnosis.
Purpose of the Study:
- To correlate radiologic findings of renal lymphoma with pathologic findings.
- To elucidate the imaging characteristics based on tumor growth patterns.
Main Methods:
- Retrospective review of 21 renal lymphoma cases.
- Correlation of imaging (radiography) with gross and microscopic pathology.
Main Results:
- Radiographic appearance is influenced by the mechanism of renal involvement (hematogenous vs. direct extension).
- Interstitial growth pattern can obscure early radiographic detection.
- Expansile growth and coalescence of lesions lead to progressive parenchymal replacement.
- Perinephric extension, vascular, and ureteral encasement are frequently observed.
Conclusions:
- Radiologic findings in renal lymphoma are diverse and depend on growth patterns and extent.
- Early interstitial growth may present subtle radiographic findings.
- Advanced disease can mimic other renal neoplasms, emphasizing the need for integrated radiologic-pathologic assessment.