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Àü¸³¼±¾ÏÀÇ Áø´Ü¿¡¼­ Àü¸³¼±Æ¯ÀÌÇ׿ø ¹ÐµµÀÇ °¡Ä¡ The Value of Prostate Specific Antigen Density in the Diagnosis of Prostate Adenocarcinoma

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Á¤Á¤À±/Jung Yun Jung Á¶±Ô¼±/º¯¼®¼ö/±è±¤¸í/¹éÀç½Â/ÀÌ»óÀº/Kyu Seon Cho/Seok Soo Byeon/Kwang Myung Kim/Jae-Seung Paick/Sang Eun Lee

Abstract

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¹× °í·ÉÀα¸ÀÇ Áõ°¡·Î ¹ßº´À²ÀÌ Áõ°¡ÇÏ°í ÀÖ´Ù.
Àü¸³Àü¾ÏÀÇ Áø´ÜÀ» À§Çؼ­ Á÷Àå¼öÁö°Ë»ç, Àü¸³¼±Æ¯ ÀÌÇ׿ø°Ë»ç, ±×¸®°í °æÁ÷ÀåÃÊÀ½ÆÄ°Ë»ç
°¡ Åë»ó ÀÌ¿ëµÇ°í ÀÖÁö¸¸ ÀÌ·¯ÇÑ °Ë»ç¹ýÀÇ °æ¿ì ¹Î°¨µµ°¡ ³·¾Æ¼­ ¾î´À ÇÑ°¡Áöµµ ´Üµ¶À¸·Î´Â
Áø´ÜÀû Á¤È®¼ºÀ» °®Áö ¸øÇÏ°í ÀÖ´Ù. µû¶ó¼­ ÀÌ ¼¼ °¡Áö °Ë»ç¹æ¹ýÀ» ¸ðµÎ Á¾ÇÕÇÏ¿©¾ß¸¸ Àü¸³
¼±¾ÏÀÇ Áø´ÜÀ» º¸´Ù Á¤È®ÇÏ°Ô ÇÒ ¼ö ÀÖ´Ù.
ÀÌÁß¿¡¼­ Àü¸³¼±Æ¯ÀÌÇ׿ø(prostate specific antigen)Àº 1979³â¿¡ Wangµî¿¡ ÀÇÇØ Ã³À½À¸·Î
Àü¸³¼±Á¶Á÷¿¡¼­ ÃßÃâµÈ Á¾¾çÇ¥½ÄÀڷμ­ Àü¸³¼±¾ÏÀÇ Áø´Ü ¹× Ä¡·áÈÄÀÇ ÃßÀûÁ¶»ç¿¡ À¯¿ëÇÏ°Ô
¾²ÀÌ°í ÀÖ´Ù. ÇÏÁö¸¸ ÀÌ ¿ª½Ã Àü¸³¼±¾Ï¿¡ ƯÀÌÇÑ °ÍÀÌ ¾Æ´Ï°í Àü¸³¼±Á¶Á÷¿¡ ƯÀÌÇϴٴ Ư
¼ºÀ¸·Î ÀÎÇØ ¸¹Àº ¾ç¼ºÁúȯ¿¡¼­µµ Ç÷û³óµµ°¡ »ó½ÂÇÏ´Â ´ÜÁ¡ÀÌ ÀÖ´Ù. ƯÈ÷ Àü¸³¼±Æ¯ÀÌÇ׿ø
ÀÌ 4-10ng/m1ÀÇ ¹üÀ§¿¡ Àִ ȯÀڵ鿡¼­´Â Àü¸³¼±ºñ´ëÁõ°ú °¨º°ÇÏ´Â °ÍÀÌ Èûµé¾î¼­ Àü¸³¼±
ƯÀÌÇ׿øÀ» Àü¸³¼±ÀÇ ¿ëÀûÀ¸·Î ±³Á¤ÇÑ Àü¸³¼±Æ¯ÀÌÇ׿ø ¹Ðµµ(prostate specific antigen
density)ÀÇ °³³äÀÌ Bensonµî¿¡ ÀÇÇØ Ã³À½À¸·Î Á¦½ÃµÇ¾ú´Ù.
ÇöÀç±îÁö ¸¹Àº ¿¬±¸ÀÚµéÀÌ Àü¸³¼±Æ¯ÀÌÇ׿ø ¹Ðµµ°¡ °ú¿¬ ÀÓ»óÀûÀ¸·Î ¾î´À Á¤µµÀÇ À¯¿ë¼ºÀ»
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¾î¶² ±âÁØÀ¸·Î Á¶Á÷°Ë»ç ½ÃÇà¿©ºÎ¸¦ °áÁ¤ÇÒ °ÍÀΰ¡ ÇÏ´Â °ÍÀº ÀÓ»óÀûÀ¸·Î ¸Å¿ì Áß¿äÇÏ´Ù.
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ÀÌ¿¡ ÀúÀÚµéÀº ÀÓ»óÀûÀ¸·Î Àü¸³¼±¾ÏÀÌ ÀǽɵǴ ȯÀÚµé, ƯÈ÷ Àü¸³¼±Æ¯ÀÌÇ׿øÀÌ
4-10ng/m1ÀÇ ¹üÀ§¿¡ Àִ ȯÀÚ±º¿¡¼­ Á¶Á÷°Ë»ç°á°ú¸¦ ºñ±³ÇÔÀ¸·Î½á Àü¸³¼± ƯÀÌÇ׿ø ¹Ðµµ
ÀÇ À¯¿ë¼ºÀ» °ËÅäÇÏ¿© ¹®Çå°íÂû°ú ÇÔ²² º¸°íÇÏ°íÀÚ ÇÑ´Ù.
#ÃÊ·Ï#
Purpose : Most studies have shown considerable overlap between benign prostatic
hyperplasia(BPH) and cancer, using a prostate specific antigen(PSA) cut-off point of
4.0ng/ml. Because of lack of sensitivity and specificity, the value of PSA measurement
in the diagnosis of prostate cancer has been questioned. The concept of PSA
density(PSAD) was introduced to enhance the specificity of serum PSA. To determine
the value of PSAD in the diagnosis of prostate cancer, we investigated whether
PSAD-based clinical guidelines could help in the diagnosis of prostate cancer and assist
in avoiding a significant number of biopsies.
Materials and Methods : Retrospective data were analysed from a selected population
of 130 patients(mean age 66 years, range 42-86), 54 with histopathologically diagnosed
prostate cancer and 76 with BPH. DRE(digital rectal examination) and TRUS(transrectal
ultrasonography) were performed and PSA and PSAD were determined for each patient.
Results : The median PSA level was 7.0ng/ml(range 0.6-87ng/m1) in the patients with
a benign diagnosis and 25.5ng/ml(range 2.2-736ng/m1) in those with malignancies. Also,
the median PSAD was 0.18ng/m1/cm3(range 0.02-2.56ng/ml/cm3) in the
benign group and 0.75ng/m1/cm3(range 0.06-22.3ng/m1/cm3)
in the malignant group. Both PSA and PSAD discriminated BPH from cancer in a whole
range of PSA level and were statistically significant. Of the 130 patients, 49(377 %) had
a PSA level in the intermediate range(4.0-10.0ng/ml). In these patients, the median PSA
was 6.5ng/ml(range 4.2-10ng/m1) In the benign group and 5.2ng/ml(range 4.1-9.8ng/ml)
in the malignant group. Also, the median PSAD was 0.16ng/m1/cm3(range
0.07-0.39ng/m1/cm3) in the benign group and 0.17ng/m1/cm3
(range 0.08-0.27ng/m1/cm3) in the malignant group Both PSA and PSAD
had no discriminating ability between BPH arid cancer in the Intermediate PSA
range(4.0-10.0ng/ml).
Conclusions : PSAD was of no additional value over serum PSA measurement in
discriminating BPH from cancer for the population with intermediate PSA levels.

Å°¿öµå

Prostate adenocarcinoma; Benign prostatic hyperplasia; Prostate specific antigen density;

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