
Prostate-Specific Antigen (PSA) Test - NCI - National Cancer Institute
Jan 31, 2025 · What is a normal PSA test result? What is done if a screening test shows an elevated PSA level? What are some of the potential benefits and harms of the PSA test for prostate cancer screening?
Prueba del antígeno prostático específico (PSA)
¿Qué es un resultado normal en la prueba del PSA? No hay una concentración específica normal o anormal del PSA en la sangre. Antes, las concentraciones del PSA de 4,0 ng/ml o menos se consideraban normales.
Understanding Prostate Changes and Conditions - National …
May 8, 2024 · When men are in their 20s, the normal prostate is about the size of a walnut. By the time a man is 40 the prostate may have grown slightly larger, and by age 60, the prostate is often the size of a lemon.
PSA Velocity Does Not Improve Prostate Cancer Detection
Feb 24, 2011 · Researchers looked at whether a PSA velocity above the 0.35 ng/ml per year threshold—when added to a standard risk model that includes age, PSA level, DRE result, family history of prostate cancer, and history of a prior prostate biopsy—improved the …
Prostate Cancer Treatment - NCI - National Cancer Institute
Dec 20, 2024 · Enlarge Normal prostate and benign prostatic hyperplasia (BPH). A normal prostate does not block the flow of urine from the bladder. An enlarged prostate presses on the bladder and urethra and blocks the flow of urine. Tests that examine the prostate and blood are used to diagnose prostate cancer.
PSA Values and SEER Data
Apr 14, 2017 · Describes data quality review for SEER Prostate Specific Antigen (PSA) values in the November 2016 submission and November 2015 submission (2004-2014 prostate cancer cases).
Prostate Cancer Screening (PDQ®) - NCI - National Cancer Institute
Several authors have explored the possibility of using PSA levels lower than 4.0 ng/mL as the upper limit of normal for screening examinations. One study screened 14,209 White men and 1,004 Black men for prostate cancer using an upper limit of normal of 2.5 ng/mL for PSA.
Tumor Markers - SEER Training
A test of blood serum to detect a specific enzyme produced by several tissues, particularly the prostate. Normal range: 20-90 I.U./liter. Normal range may vary somewhat according to the brand of laboratory assay materials used. Prostate Specific Antigen: Also called: PSA. Excludes: prostatic acid phosphatase.
Tumor Markers - NCI - National Cancer Institute
Tumor markers have traditionally been proteins or other substances that are made at higher amounts by cancer cells than normal cells. These can be found in the blood, urine, stool, tumors, or other tissues or bodily fluids of some patients with cancer.
Prostate Cancer Screening - NCI
Dec 10, 2024 · A PSA test or a DRE may be able to detect prostate cancer at an early stage, but it is not clear whether early detection and treatment decrease the risk of dying from prostate cancer. Studies are being done to find ways to make PSA testing more accurate for …