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PSA指數是評估前列腺癌的常見指標，但高PSA指數並不意味著一定是患有前列腺癌。正常的PSA水平應介乎於2.5至4.0 ng/mL之間。當PSA在4至10之間時，患癌的機率約為26%；而高於10時，則大概為53%。儘管如此，PSA升高的原因可能有很多，例如良性前列腺增生、尿道炎及前列腺炎。因此，當發現PSA異常時，應尋求泌尿科醫生的專業意見。 要有效診斷前列腺癌，病人可考慮進行MRI檢查。MRI能夠精確檢測和定位病變，而PI-RADS（前列腺影像報告和數據系統）則是用於標準化MRI影像解讀和評估病變風險的評分系統（1 到5），分數越高，患上前列腺癌的可能性越大。在風險較高的情況下，病人可能需要進行前列腺活組織檢查。 The PSA index is a common indicator for assessing prostate cancer; however, a high PSA level does not necessarily mean that one has prostate cancer. Normal PSA levels should range between 2.5 and 4.0 ng/mL. When the PSA index is between 4 and 10, the probability of having cancer is approximately 26%, while a level above 10 indicates about a 53% chance. Nevertheless, there are many possible reasons for elevated PSA levels such as benign prostatic hyperplasia, urethritis, and prostatitis. Therefore, professional advice from a urologist should be sought when PSA abnormalities are detected. To effectively diagnose prostate cancer, patients may consider undergoing an MRI examination. MRI can accurately detect and locate lesions, while PI-RADS (Prostate Imaging Reporting and Data System) is a scoring system used to standardize the interpretation of MRI images and assess the risk of lesions (ranging from 1 to 5). The higher the score, the greater the likelihood of prostate cancer, increasing the need for undergoing a prostate biopsy. #醫生話你知 #前列腺癌 #PSA指數 #What the Doctor Said #ProstateCancer #PSA #MRI ----------------------------------------------------------------- 「探泌」CUHK Urology: https://urologycentre.com.hk/ Instagram:   / cuhk.urology   X: https://x.com/CuhkUrology