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Renal lymphoma
Renal lymphoma can involve the kidneys through either primary or secondary spread. Imaging findings on CT scans commonly demonstrate multiple renal masses, a solitary mass, renal invasion from adjacent retroperitoneal disease, perirenal involvement, or diffuse renal infiltration. MRI findings are generally similar to CT, with lymphoma appearing as low signal intensity on T1-weighted images and isointense or moderately hyperintense on T2-weighted images, often with minimal contrast enhancement.
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Renal lymphoma
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- 2. Renal Lymphoma • Incidenceof renal involvement in patients with lymphoma is 34-62% in several autopsy series. • On CT, renal involvement in only 3-8% of all patients
- 3. Renal Lymphoma • Anyage. • Any sex. • More in non–Hodgkin lymphoma than in Hodgkin lymphoma.
- 4. Renal Lymphoma • Primary:Rare (3%). • Secondary: Hematogenous spread or direct extension.
- 5. Renal Lymphoma • Normal. •Distortion of the collecting system resulting from single or multiple renal masses. Plain X-Ray/ IVU:
- 6. Renal Lymphoma • Mayappear normal because of the small size of the renal nodules • Single or multiple hypoechoic renal masses. • Diffuse enlargement. • Hydronephrosis may be seen because of compression of the renal hilum. • Perirenal hypoechoic halo is characteristic of perirenal lymphoma US:
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- 10. Renal Lymphoma CT : •Multiple renal masses. • Solitary mass. • Renal invasion from contiguous retroperitoneal disease. • Perirenal disease. • Diffuse renal infiltration.
- 11. Renal Lymphoma CT : •Multiple renal masses.
- 12. Renal Lymphoma CT : •Multiple renal masses.
- 13. Renal Lymphoma CT : •Multiple renal masses.
- 14. Renal Lymphoma CT : •Multiple renal masses.
- 15. Renal Lymphoma CT : •Solitary mass.
- 16. Renal Lymphoma CT : •Solitary mass.
- 17. Renal Lymphoma CT : •Solitary mass.
- 18. Renal Lymphoma CT : •Solitary mass.
- 19. Renal Lymphoma CT : •Renal invasion from contiguous retroperitoneal disease.
- 20. Renal Lymphoma CT : •Renal invasion from contiguous retroperitoneal disease.
- 21. Renal Lymphoma CT : •Renal invasion from contiguous retroperitoneal disease.
- 22. Renal Lymphoma CT : •Perirenal disease.
- 23. Renal Lymphoma CT : •Perirenal disease.
- 24. Renal Lymphoma CT : •Perirenal disease.
- 25. Renal Lymphoma CT : •Perirenal disease.
- 26. Renal Lymphoma CT : •Diffuse renal infiltration.
- 27. Renal Lymphoma CT : •Diffuse renal infiltration.
- 28. Renal Lymphoma CT : •Diffuse renal infiltration.
- 29. Renal Lymphoma MRI : •MRI findings in lymphoma are similar to those seen on CT scans. • Usually, lymphoma displays low signal intensity on T1- weighted images, and it is either isointense or moderately hyperintense on T2-weighted images. • Lymphomatous tissue may be minimally enhancing, but less than the normal renal parenchyma; therefore, it remains hypointense relative to the kidney on contrast- enhanced T1-weighted MRIs
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