Korean J Urol.  2006 Jun;47(6):667-669. 10.4111/kju.2006.47.6.667.

Localized Amyloidosis of the Prostate

• Heo YS
• Kim KH
• Han JH
• Ahn BC
• Kim YK
• Kim SJ

• KMID: 2294245
• DOI: http://doi.org/10.4111/kju.2006.47.6.667

Abstract

The increasing number of prostatic biopsies, performed for the investigation of patients at risk of prostate cancer, will result in the more frequent identification of uncommon forms of prostatic pathology. Amyloidosis is a disease characterized by the extracellular deposition of insoluble amyloid fibrils, and may be either systemic or localized. Localized amyloidosis of the prostate is very rare. Herein, we report the case of a 34-year-old man with localized amyloidosis of the prostate, which was found via a transrectal ultrasound-guided prostatic biopsy due to an increased serum prostate-specific antigen level.

Keyword

Prostate; Amyloidosis; Biopsy; Prostate-specific antigen

MeSH Terms

Adult
Amyloid
Amyloidosis*
Biopsy
Humans
Pathology
Prostate*
Prostate-Specific Antigen
Prostatic Neoplasms
Amyloid
Prostate-Specific Antigen

Figure

• 

  Fig. 1 Microscopic finding of the specimen shows subepithelial deposition of amorphous, eosinophilic materials in the prostate (H&E, ×200).

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  Fig. 2 (A) Congo red-stained section of the prostate (×200). (B) Polarized light microscopy of section A disclosing an apple-green birefringence (×200).

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