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Related Concept Videos

Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

502
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....
502
Testes: Histology01:27

Testes: Histology

1.2K
A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
1.2K
Testes: Gross Anatomy01:19

Testes: Gross Anatomy

2.6K
The testes, also known as testicles, are the male gonads. They are housed within the scrotum, a sac-like structure located beneath the penis. The scrotum's primary role is to regulate the temperature of the testes, which is crucial for sperm production.
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...
2.6K

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Related Experiment Video

Updated: Aug 9, 2025

Teratoma Generation in the Testis Capsule
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[Secondary tumors localized in testis].

Pierre Allaume1, Zine-Eddine Khene2, Benoît Peyronnet2

  • 1Service anatomie pathologique, CHU de Rennes-université de Rennes 1 Hôpital Pontchaillou, 2, rue Henri Le Guilloux, 35033 Rennes Cedex 9, France.

Annales De Pathologie
|February 23, 2023
PubMed
Summary

Secondary testicular tumors are rare, with prostate and colorectal cancers being the most common origins. This study analyzes 98 cases to understand diagnosis and metastatic pathways.

Keywords:
CancerHistologieHistologyMetastasisMétastaseSecondaireSecondaryTesticuleTestisTumeurTumor

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Area of Science:

  • Oncology
  • Pathology
  • Urology

Context:

  • Testis tumors are uncommon, and metastasis to the testes from distant solid tumors is even rarer.
  • This study consolidates case reports to provide an integrative overview of non-hematopoietic secondary testis tumors in adults.

Purpose:

  • To analyze the characteristics of secondary testis tumors.
  • To identify common primary cancer types metastasizing to the testes.
  • To discuss diagnostic challenges and metastatic dissemination pathways.

Summary:

  • Analyzed 98 cases of secondary testis lesions, with prostate (38.77%), colorectal (19.39%), and gastric (12.24%) cancers being the most frequent primary sites.
  • Median age at diagnosis was 66.5 years, with older patients when the primary tumor was known.
  • Prostate adenocarcinoma was significantly more common when the primary tumor was known, while colorectal and pancreatic adenocarcinomas were more frequent when the primary tumor was unknown.

Impact:

  • Provides insights into the epidemiology and common origins of secondary testicular tumors.
  • Highlights diagnostic challenges and potential routes of metastatic spread to the testes.
  • Contributes to a better understanding of rare oncological presentations.