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Upper limit of cancer extent on biopsy defining very low-risk prostate cancer

Bratt, Ola (författare)
Lund University,Lunds universitet,Urologisk cancerforskning, Malmö,Forskargrupper vid Lunds universitet,Urological cancer, Malmö,Lund University Research Groups
Folkvaljon, Yasin (författare)
Univ Uppsala Hosp, Reg Canc Ctr, Uppsala, Sweden.
Loeb, Stacy (författare)
NYU, Dept Urol, New York, NY USA.;Manhattan Vet Affairs Med Ctr, New York, NY USA.
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Klotz, Laurence (författare)
Univ Toronto, Sunnybrook Hlth Sci Ctr, Toronto, ON, Canada.
Egevad, L (författare)
Karolinska Univ Hosp, Dept Pathol, Stockholm, Sweden.,Department of Oncology-Pathology (OnkPat)
Stattin, Pär (författare)
Umeå universitet,Uppsala universitet,Urologkirurgi,Umea Univ, Dept Surg & Perioperat Sci, Umea, Sweden.,Institutionen för kirurgisk och perioperativ vetenskap
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 (creator_code:org_t)
2015-03-07
2015
Engelska.
Ingår i: BJU International. - : Wiley. - 1464-4096 .- 1464-410X. ; 116:2, s. 213-219
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Objective To investigate how much Gleason pattern 3 cancer prostate biopsy specimens may contain without an increased risk of undetected more aggressive cancer, compared with the risk for cancers fulfilling the National Comprehensive Cancer Network (NCCN) criteria for very low-risk prostate cancer. Patients and Methods We identified 1286 men aged <70 years in the National Prostate Cancer Register of Sweden who underwent primary radical prostatectomy (RP) for stage T1c or T2 prostate cancer with Gleason pattern <= 3 only, prostate-specific antigen (PSA) level of <10 ng/mL and a PSA density of <0.15 ng/mL/mL. The association between the extent of cancer in the biopsies (the number and proportion of positive cores and the total cancer length in the cores in millimetres) and the likelihood of Gleason pattern 4-5 in the RP specimen was analysed with logistic regression. Results In all, 438 (34%) of the 1286 men had Gleason pattern 4-5 in the RP specimen. Increasing number and proportion of positive biopsy cores, as well as increasing biopsy cancer length were both significantly associated with increased risk of upgrading at RP in univariable analysis, but in multivariable analysis only biopsy cancer length remained significant. The 684 men with stage T1c and < 8 mm cancer had similar risk of upgrading regardless of whether the number of positive biopsy cores was 1-2 or 3-4 (28% vs 27% risk); upgrading was more common among the remaining men (40%, P < 0.01). Conclusions Men aged < 70 years with stage T1c prostate cancer and 3-4 biopsy cores with Gleason pattern 3 are not more likely to have undetected Gleason pattern 4-5 cancer than men with 1-2 cores with cancer, provided that the total biopsy cancer length is < 8 mm. We propose that the definition of very low-risk prostate cancer is widened accordingly.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Urology and Nephrology (hsv//eng)

Nyckelord

prostatic neoplasms
categorisation
biopsy
pathology

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

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