What are limitations of imaging techniques for renal lymphoma?

Updated: Mar 22, 2019
  • Author: Ali Shirkhoda, MD; Chief Editor: Eugene C Lin, MD  more...
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Intravenous urography can depict only the renal collecting system and suggestive large masses that have caused calyceal distortion. Small parenchymal masses and tumors around the kidney and in the retroperitoneum are often not demonstrated with this diagnostic examination.

On sonograms, the parenchymal masses are often hypoechoic, reflecting tissue homogeneity, and they can be misidentified as renal cysts.

Regarding nuclear medicine studies, although gallium-67 citrate is an isotope that often accumulates in lymphomatous tissue, it can also be taken up by inflammatory masses.

Nonenhanced CT scan studies or MRIs can cause masses to be missed, particularly when such masses are small.

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