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Prostatic calculi
Medical condition

Prostatic calculi (PC), prostatic stones, prostatic calcification or prostatic lithiasis, are hyper-echoic mineral deposits in the prostate that are frequently detected incidentally during transabdominal ultrasonography, transrectal ultrasonography, or computed tomography.

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Formation

There are two main types of prostatic calculi:

  • Endogenous stones: These are small stones formed within the acini of the prostate. They have a higher correlation with age.4
  • Extrinsic stones: These stones are usually larger and formed due to the reflux of urine into the prostate.5

The exact mechanism of the development of prostatic calculi is still unclear.6

Prevalence

In a study of young adults in Greece (aged 21–50, mean age 40.9 years), the prevalence was found to be 7.35%.7 While among urologic patients in South Korea (aged 29–89, mean age 61.9 years), the prevalence was 40.7%.8

The prevalence is notably higher in patients with benign prostatic hyperplasia, ranging from 68.8% to 70%.9 Additionally, a study conducted in Cleveland reported that 46.8% of patients with chronic pelvic pain had stones larger than 3mm.10

Composition

Calcium phosphate is the most common component of prostatic calculi, accounting for more than 80% of cases.11

Clinical significance

Most cases of prostatic calculi are asymptomatic.12 It's clinical significance is debated.13 While some studies report no significant association between PC and lower urinary tract symptoms (LUTS), others suggest it can aggravate LUTS, chronic prostatitis, and sexual dysfunction.14

References

  1. Cao, Jun-Jie; Huang, Wei; Wu, Hong-Shen; Cao, Min; Zhang, Yan; Jin, Xiao-Dong (July 2018). "Prostatic Calculi: Do They Matter?". Sexual Medicine Reviews. 6 (3): 482–491. doi:10.1016/j.sxmr.2017.10.003. PMID 29157875. S2CID 2162594. /wiki/Doi_(identifier)

  2. Wang, Hao; Ma, Ming; Qin, Feng; Yuan, Jiuhong (February 2021). "The influence of prostatic calculi on lower urinary tract symptoms and sexual dysfunction: a narrative review". Translational Andrology and Urology. 10 (2): 929–938. doi:10.21037/tau-20-1046. PMC 7947430. PMID 33718093. S2CID 232231107. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7947430

  3. Hyun, Jae Seog (2018). "Clinical Significance of Prostatic Calculi: A Review". The World Journal of Men's Health. 36 (1): 15–21. doi:10.5534/wjmh.17018. ISSN 2287-4208. PMC 5756803. PMID 29076299. S2CID 19198319. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756803

  4. Hyun, Jae Seog (2018). "Clinical Significance of Prostatic Calculi: A Review". The World Journal of Men's Health. 36 (1): 15–21. doi:10.5534/wjmh.17018. ISSN 2287-4208. PMC 5756803. PMID 29076299. S2CID 19198319. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756803

  5. Hyun, Jae Seog (2018). "Clinical Significance of Prostatic Calculi: A Review". The World Journal of Men's Health. 36 (1): 15–21. doi:10.5534/wjmh.17018. ISSN 2287-4208. PMC 5756803. PMID 29076299. S2CID 19198319. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756803

  6. Hyun, Jae Seog (2018). "Clinical Significance of Prostatic Calculi: A Review". The World Journal of Men's Health. 36 (1): 15–21. doi:10.5534/wjmh.17018. ISSN 2287-4208. PMC 5756803. PMID 29076299. S2CID 19198319. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756803

  7. Geramoutsos, Ioannis; Gyftopoulos, Kostis; Perimenis, Petros; Thanou, Vasiliki; Liagka, Dimitra; Siamblis, Dimitrios; Barbalias, George (2004). "Clinical Correlation of Prostatic Lithiasis with Chronic Pelvic Pain Syndromes in Young Adults". European Urology. 45 (3): 333–338. doi:10.1016/j.eururo.2003.09.020. PMID 15036679. /wiki/Doi_(identifier)

  8. Lee, Sang Eun; Ku, J.A. Hyeon; Park, Hyoung Keun; Jeong, Cheol Kwak Hyeon; Kim, Seung Hyup (2003). "Prostatic Calculi Do Not Influence The Level of Serum Prostate Specific Antigen in Men Without Clinically Detectable Prostate Cancer or Prostatitis". Journal of Urology. 170 (3): 745–748. doi:10.1097/01.ju.0000081650.23715.4c. ISSN 0022-5347. PMID 12913688. /wiki/Doi_(identifier)

  9. Hyun, Jae Seog (2018). "Clinical Significance of Prostatic Calculi: A Review". The World Journal of Men's Health. 36 (1): 15–21. doi:10.5534/wjmh.17018. ISSN 2287-4208. PMC 5756803. PMID 29076299. S2CID 19198319. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756803

  10. Shoskes, Daniel A.; Lee, Chun-Te; Murphy, Donel; Kefer, John; Wood, Hadley M. (2007). "Incidence and Significance of Prostatic Stones in Men with Chronic Prostatitis/Chronic Pelvic Pain Syndrome". Urology. 70 (2): 235–238. doi:10.1016/j.urology.2007.04.008. PMID 17826477. https://linkinghub.elsevier.com/retrieve/pii/S0090429507004943

  11. Cao, Jun-Jie; Huang, Wei; Wu, Hong-Shen; Cao, Min; Zhang, Yan; Jin, Xiao-Dong (July 2018). "Prostatic Calculi: Do They Matter?". Sexual Medicine Reviews. 6 (3): 482–491. doi:10.1016/j.sxmr.2017.10.003. PMID 29157875. S2CID 2162594. /wiki/Doi_(identifier)

  12. Hyun, Jae Seog (2018). "Clinical Significance of Prostatic Calculi: A Review". The World Journal of Men's Health. 36 (1): 15–21. doi:10.5534/wjmh.17018. ISSN 2287-4208. PMC 5756803. PMID 29076299. S2CID 19198319. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5756803

  13. Wang, Hao; Ma, Ming; Qin, Feng; Yuan, Jiuhong (February 2021). "The influence of prostatic calculi on lower urinary tract symptoms and sexual dysfunction: a narrative review". Translational Andrology and Urology. 10 (2): 929–938. doi:10.21037/tau-20-1046. PMC 7947430. PMID 33718093. S2CID 232231107. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7947430

  14. Cao, Jun-Jie; Huang, Wei; Wu, Hong-Shen; Cao, Min; Zhang, Yan; Jin, Xiao-Dong (July 2018). "Prostatic Calculi: Do They Matter?". Sexual Medicine Reviews. 6 (3): 482–491. doi:10.1016/j.sxmr.2017.10.003. PMID 29157875. S2CID 2162594. /wiki/Doi_(identifier)