MRI Often Underestimates Tumor Size in Prostate Cancer

MRI Often Underestimates Tumor Size in Prostate Cancer
(Mark Moran/The Citizens' Voice via AP)

A study led by researchers at the UCLA Jonsson Comprehensive Cancer Center has found that magnetic resonance imaging, or MRI, frequently underestimates the size of prostate tumors, potentially leading to undertreatment.

The study authors found that such underestimation occurs most often when the MRI-measured tumor size is small and the PI-RADS score, which is used to classify lesions in prostate MRI analysis, is low.

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