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Related Concept Videos

Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

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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....
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Testes: Gross Anatomy01:19

Testes: Gross Anatomy

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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...
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Testes: Histology01:27

Testes: Histology

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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...
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Infertility in Males01:23

Infertility in Males

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Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
299
Tumor Immunotherapy01:27

Tumor Immunotherapy

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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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Updated: Jul 25, 2025

Teratoma Generation in the Testis Capsule
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Testicular Tumors.

Susanne Krege1, Christoph Oing, Carsten Bokemeyer

  • 1Department of Urology, Pediatric Urology, and Urological Oncology, Essen-Mitte Hospital, Essen; Translational and Clinical Research Institute, Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK; Department of Oncology, Hematology, and Stem Cell Transplantation, Pulmonology Section, University Hospital Hamburg Eppendorf, Hamburg.

Deutsches Arzteblatt International
|June 28, 2023
PubMed
Summary
This summary is machine-generated.

Testicular germ-cell tumors are common in young men. Multimodal treatment offers high cure rates, with over 99% for early stages and 67-95% for advanced disease, emphasizing tailored approaches to avoid overtreatment.

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Area of Science:

  • Oncology
  • Urology

Background:

  • Testicular germ-cell tumors are the most frequent malignancy in men aged 20–40.
  • Incidence in Germany is 10 per 100,000 men annually, totaling approximately 4200 new cases.
  • These tumors represent a significant public health concern within this demographic.

Purpose of the Study:

  • To review the German clinical practice guideline for testicular germ-cell tumors.
  • To synthesize current evidence on diagnosis, treatment, and follow-up care.
  • To provide an evidence-based overview for clinicians managing these cancers.

Main Methods:

  • Selective review of pertinent original articles and reviews.
  • Based on recommendations from the German clinical practice guideline on testicular germ-cell tumors.
  • Focus on interdisciplinary management strategies.

Main Results:

  • Treatment involves testis resection followed by surveillance, chemotherapy, radiotherapy, or surgery based on tumor type and stage.
  • Two-thirds of tumors are diagnosed at stage I (confined to testis); one-third are metastatic at diagnosis (10–15% with organ metastases).
  • Stage-based multimodal treatments achieve cure rates >99% for stage I and 67–95% for advanced metastatic disease.

Conclusions:

  • Avoid overtreatment in early-stage testicular germ-cell tumors to minimize long-term side effects.
  • Intensified treatment decisions for advanced stages should be individualized to optimize outcomes.
  • Multimodal treatment strategies demonstrate high cure rates, even in patients with metastatic disease.