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Difference Between Epididymis and Testicular Cancer

November 12, 2017Posted byRanidu

Key Difference – Epididymis vs Testicular Cancer

Most people think that epididymis is a name of a disease. However, epididymis is only a part of themale reproductive systemthat facilitates the transportation and maturation of the spermatozoa. On the other hand, testicular cancers are a disease that affects the male reproductive system.Thus, the key difference between epididymis and testicular cancer is the fact thatepididymis is an organ whereas testicular cancer is a disease.

CONTENTS

1.Overview and Key Difference
2.What is Epididymis
3.What is Testicular Cancer
4.Side by Side Comparison – Epididymis vs Testicular Cancer in Tabular Form
5.Summary

What is Epididymis?

The epididymis is one part of the male reproductive system whose function is the facilitation of transportation ofsemen. This tubular structure moves along the posterolateral side of the testis. The two components of epididymis are,

  • Efferent ductules – this forms the head of the epididymis by forming an enlarged coil that sits on the posterosuperior pole of the testis.
  • True epididymis – all the efferent ductules drain into this thin coiled duct. It continues inferiorly along the posterior aspect of the testis as the body of the epididymis and enlarges to form the tail of the epididymis at the inferior pole of the testis.
  • Difference Between Epididymis and Testicular Cancer

    Figure 01: Epididymis

Functions of Epididymis

  • Storage of spermatozoa until ejaculation
  • During the passage of spermatozoa through the epididymis, they acquire the ability to fertilize an egg.

The end of the epididymis is continuous with the ductus deferens.

What is Testicular Cancer?

Testicular cancers constitute about 10% of all cancer deaths. There are different varieties of testicular cancers depending on their anatomical and morphological features.

Risk Factors

  • Testicular dysgenesis syndrome which includes cryptorchidism, hypospadias and poor sperm quality.
  • Inutero exposure to pesticides and nonsteroidal estrogens
  • Familial predisposition

Pathological Classification

  • Seminomas
  • Seminomas and spermatocytic seminomas
  • Non seminomas
  • Embryonal carcinoma
  • Choriocarcinoma
  • Yolk sactumor
  • Teratoma
  • Sex cord stromal tumor
  • Leydig cell tumor
  • Sertoli cell tumor

Seminomas

These are the commonest germ cell tumors occurring in the testes. The highest incidence is in the third decade of the life.

Spermatocytic Seminoma

In contrast to the seminomas, these tumors are slow growing, masses that predominantly affect older men.

Embryonal Carcinoma

These are more aggressive than seminomas and their incidence is highest during the 2ndand 3rddecades of life.

Yolk Sac Tumor

This is the commonest tumor in infants and children up to 3 years of age.

Choriocarcinoma

These are a highly malignant set of tumors with a high malignant potential.

Teratoma

Teratomas constitute of tissue components derived from different germinal layers. In postpubertal males, teratoma is considered as a malignant tumor.

Key Difference - Epididymis vs Testicular Cancer

Figure 01: Testicular Seminomas

Clinical Features

  • Painless enlargement of the testis is the characteristic feature of testicular neoplasms.
  • Biopsy of a testicular tumor is associated with spillage of the tumor which would necessitate the excision of scrotal skin along with orchiectomy. Therefore the management of testicular masses is carried out through radical orchiectomy.
  • The spread of testicular tumors predominantly happens via the lymphatics. Para-aortic nodes are the first to get involved.

Staging

  • Stage I – tumor confined to the testis, epididymis or the spermatic cord
  • Stage II – distant spread confined to the retroperitoneal nodes below the diaphragm
  • Stage III – metastases outside the retroperitoneal nodes or outside the diaphragm

Biomarkers

HCG, AFP, and lactate dehydrogenase levels are elevated in testicular cancers.

Treatment

  • Radiotherapy is useful in the management of seminomas which are radiosensitive.
  • Radical orchiectomy is the surgical procedure carried out for the excision of testicular masses.
  • Pure choriocarcinomas have a poor prognosis.

What is the Difference Between Epididymis and Testicular Cancer?

Epididymis vs Testicular Cancer

Epididymis is a component of the male reproductive system Testicular cancers are the malignant tumors that occur in the testes.
Organ vs Disease
Epididymis is an organ. Testicular cancer is a disease that affects the male reproductive system.

Summary – Epididymis vs Testicular Cancer

The epididymis is one part of the male reproductive system whereas testicular cancers are a malignant disease condition that affects the male reproductive system. So the obvious difference between epididymis and testicular cancer is that epididymis is an organ while testicular cancer is a disease.

Download PDF Version of Epididymis vs Testicular Cancer

You can download PDF version of this article and use it for offline purposes as per citation note. Please download PDF version hereDifference Between Epididymis and Testicular Cancer

References:

1. Kumar, Vinay, Stanley Leonard Robbins, Ramzi S. Cotran, Abul K. Abbas, and Nelson Fausto. Robbins and Cotran pathologic basis of disease. 9th ed. Philadelphia, Pa: Elsevier Saunders, 2010. Print.

Image Courtesy:

1. “Figure 28 01 03” By OpenStax College – Anatomy & Physiology,Connexions Web site, Jun 19, 2013 (CC BY 3.0) viaCommons Wikimedia
2. “Seminoma of the Testis” By Ed Uthman, MD. – (Public Domain) viaCommons Wikimedia

Related posts:

Difference Between Prostate Cancer and Testicular CancerDifference Between Prostate Cancer and Testicular Cancer Difference Between Teratoma and Seminoma Difference Between Sperm and Cervical Mucus Difference Between Testicular Cancer and CystDifference Between Testicular Cancer and Cyst (Scrotal Cyst) Difference Between Varicocele and Testicular CancerDifference Between Varicocele and Testicular Cancer

Filed Under:MedicineTagged With:Choriocarcinoma,Compare Epididymis and Testicular Cancer,Embryonal carcinoma,epididymis,Epididymis and Testicular Cancer Differences,Epididymis and Testicular Cancer Similarities,Epididymis Definition,Leydig cell tumor,seminoma,seminomas,Sertoli cell tumor,Sex cord stromal tumor,Spermatocytic seminoma,teratoma,Testicular Cancer,Testicular Cancer Causes,Testicular Cancer Clinical Features,Testicular Cancer definition,Testicular Cancer Pathological Classification,Testicular Cancer Stages,Yolk sac tumor

About the Author:Ranidu

Ranidu is passionate about writing articles on medical topics in general parlance. His experience in communicating with the general public during his medical practice has enabled him to describe facts that a layman has to know about a particular disorder in a concise and understandable manner.

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