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Multiple Choice

On ultrasound, a suspicious lesion within the prostate is most often described as which?

The main idea is that prostate cancers in ultrasound typically stand out as darker areas compared with the surrounding tissue. A suspicious lesion is described as hypoechoic because cancerous tissue often has different acoustic properties and returns fewer echoes than the normal gland, so it looks darker on the scan. This hypoechoic appearance is a classic red flag on transrectal ultrasound. By contrast, a hyperechoic area would be brighter, iso-echoic blends in with surrounding tissue and is harder to detect, and a cystic lesion would be mostly anechoic (very dark) due to being fluid-filled rather than a solid solid nodule.

The main idea is that prostate cancers in ultrasound typically stand out as darker areas compared with the surrounding tissue. A suspicious lesion is described as hypoechoic because cancerous tissue often has different acoustic properties and returns fewer echoes than the normal gland, so it looks darker on the scan. This hypoechoic appearance is a classic red flag on transrectal ultrasound. By contrast, a hyperechoic area would be brighter, iso-echoic blends in with surrounding tissue and is harder to detect, and a cystic lesion would be mostly anechoic (very dark) due to being fluid-filled rather than a solid solid nodule.