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Related Concept Videos

Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...

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Related Experiment Video

Updated: Jul 14, 2026

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance
05:35

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance

Published on: June 6, 2025

The prostate needle biopsy gun: busting a myth.

Amit R Patel1, J Stephen Jones

  • 1Glickman Urological Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA.

The Journal of Urology
|June 19, 2007
PubMed
Summary

Prostate biopsy needles do not have a skip area. Placing the needle tip directly on the capsule ensures the prostatic capsule is obtained in the specimen.

Area of Science:

  • Urology
  • Medical Device Technology
  • Surgical Procedures

Background:

  • Current prostate biopsy techniques often assume a 0.5 cm skip area.
  • This assumption leads to recommendations for needle placement to ensure capsule capture.

Purpose of the Study:

  • To investigate the existence of a skip area in prostate biopsy needles.
  • To determine the actual tissue content obtained by biopsy needles.
  • To validate findings using an apple model with clinical correlation.

Main Methods:

  • Utilized 3 types of spring-loaded biopsy needles.
  • Obtained 24 biopsy cores from an apple model.
  • Placed needle tips directly adjacent to the capsule before firing.
  • Visually inspected cores for the presence of the capsule (apple peel).

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Povidone Iodine Rectal Preparation at Time of Prostate Needle Biopsy is a Simple and Reproducible Means to Reduce Risk of Procedural Infection
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Povidone Iodine Rectal Preparation at Time of Prostate Needle Biopsy is a Simple and Reproducible Means to Reduce Risk of Procedural Infection

Published on: September 21, 2015

Related Experiment Videos

Last Updated: Jul 14, 2026

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance
05:35

Transperineal Prostate Biopsy Using a Cone-shaped Double-hole Method with Dual-plane Probe Guidance

Published on: June 6, 2025

Povidone Iodine Rectal Preparation at Time of Prostate Needle Biopsy is a Simple and Reproducible Means to Reduce Risk of Procedural Infection
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Povidone Iodine Rectal Preparation at Time of Prostate Needle Biopsy is a Simple and Reproducible Means to Reduce Risk of Procedural Infection

Published on: September 21, 2015

Main Results:

  • All biopsy cores successfully captured the apple peel.
  • Confirmed the absence of a skip area in the initial 0.5 cm of needle advancement.
  • Demonstrated that the capsule is obtained when the needle tip is placed adjacent to it.

Conclusions:

  • Spring-loaded biopsy guns capture the prostatic capsule when the needle tip is positioned directly adjacent to it.
  • Urologists should place the needle tip directly on the capsule to ensure its inclusion in the specimen.
  • Needle withdrawal should only occur if the gland depth poses a risk of firing past the target.