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Updated: Mar 3, 2026
06:20
Murine Bilateral Renal Lymphadenectomy
Published on: December 30, 2025
121
Imaging features of primary renal lymphoma
Qingqiang Zhu1, Wenrong Zhu2, Jingtao Wu2
11 Department of Radiology, Second Xiangya Hospital, Central South University, Changsha, PR China.
Acta Radiologica (Stockholm, Sweden : 1987)
|May 4, 2017
Summary
Primary renal lymphoma (PRL) is rare and often misdiagnosed as renal cell carcinoma. Imaging features like infiltrative appearance and displacement of vessels around the kidney can help suggest a PRL diagnosis.
Area of Science:
- Radiology
- Oncology
- Medical Imaging
Background:
- Primary renal lymphoma (PRL) is an exceptionally rare malignancy.
- PRL is frequently misdiagnosed as renal cell carcinoma (RCC) due to overlapping imaging features.
Purpose of the Study:
- To delineate the characteristic findings of primary renal lymphoma (PRL) on multislice computed tomography (MSCT) and magnetic resonance imaging (MRI).
Main Methods:
- Retrospective analysis of CT and MRI scans from 23 patients diagnosed with PRL.
- Assessment of tumor characteristics including size, location, enhancement patterns, and relationship to adjacent structures.
Main Results:
- Tumors typically presented as single/multifocal nodules or diffuse enlargement with an infiltrative pattern.
- Absence of calcification and displacement/circumferential wrapping of abdominal vessels around tumors were common.
- Low tumor enhancement, isointensity on T1-weighted MRI, hypointensity on T2-weighted MRI, and hyperintensity on diffusion-weighted imaging were observed.
Conclusions:
- Infiltrative growth and displacement of vessels, rather than encasement, are key imaging indicators for diagnosing PRL on CT and MRI.
- Recognizing these specific imaging patterns can aid in differentiating PRL from other renal masses, particularly RCC.
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