Prostate cancer ultrasound

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

On ultrasound, prostate cancer is characterized by hypoechoic areas.

Ultrasound

• On ultrasound, prostate cancer is characterized by hypoechoic areas

• It seems that size of the area matters

• Small hypoechoic areas (<0.2 cm3) have cancer less than 4% of the time

• Transrectal ultrasonography (TRUS) is often initially performed in order to detect abnormalities and to guide biopsy, usually following an abnormal prostate-specific antigen (PSA) level or Digital rectal examination (DRE) result.
• Ultrasound is used to direct biopsy of suspicious, hypoechoic regions, usually in the peripheral zone.
• Transrectal ultrasound is also the modality of choice for directing brachytherapy seeds into the prostate gland.