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  2. Prostate cancer - Wikipedia

    en.wikipedia.org/wiki/Prostate_cancer

    The AJCC then combines the TNM scores, Gleason grade group, and results of the PSA blood test to categorize cancer cases into one of four stages, and their subdivisions. Cancer cases with localized tumors (T1 or T2), no spread (N0 and M0), Gleason grade group 1, and PSA less than 10 ng/mL are designated stage I.

  3. Polar surface area - Wikipedia

    en.wikipedia.org/wiki/Polar_surface_area

    Molecules with a polar surface area of greater than 140 angstroms squared (Å 2) tend to be poor at permeating cell membranes. [1] For molecules to penetrate the blood–brain barrier (and thus act on receptors in the central nervous system), a PSA less than 90 Å 2 is usually needed. [2] TPSA is a valuable tool in drug discovery and development.

  4. Management of prostate cancer - Wikipedia

    en.wikipedia.org/wiki/Management_of_prostate_cancer

    After surgery or radiation therapy, PSA may start to rise again, which is called biochemical recurrence if a certain threshold is met in PSA levels (typically 0.1 or 0.2 ng/ml for surgery). At 10 years of follow-up after surgery, there is an overall risk of biochemical recurrence of 30–50%, depending on the initial risk state, and salvage ...

  5. Prostate cancer staging - Wikipedia

    en.wikipedia.org/wiki/Prostate_cancer_staging

    cT1b: tumor was incidentally found in greater than 5% of prostate tissue resected; cT1c: tumor was found in a needle biopsy performed due to an elevated serum PSA; cT2: the tumor can be felt (palpated) on examination, but has not spread outside the prostate cT2a: the tumor is in half or less than half of one of the prostate gland's two lobes

  6. Prostate cancer screening - Wikipedia

    en.wikipedia.org/wiki/Prostate_cancer_screening

    Prostate-specific antigen. Prostate-specific antigen (PSA) is secreted by the epithelial cells of the prostate gland and can be detected in a sample of blood. [14] PSA is present in small quantities in the serum of men with healthy prostates, but is often elevated in the presence of prostate cancer or other prostate disorders. [15]

  7. Radical perineal prostatectomy - Wikipedia

    en.wikipedia.org/wiki/Radical_perineal_prostatectomy

    It is less commonly used than the alternative methods of the retropubic route, or the robot assisted laparoscopic approach. [1] [4] It is more suited to younger men, age under 70 years, who have at least a ten-year life expectancy, few if any other medical problems, a Gleason score of less than 8 (4+4) and PSA of less than 10. [3]

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