Testicular mesothelioma is extremely rare, very little is known about how it develops. Asbestos fibers once they enter the body get lodged in the spaces of the mesothelial cells causing infection leading to inflammation which further develops into mesothelioma. The fibers cause the cancerous cells to grow abnormally by dividing without restraint. After toxic asbestos fibers have become lodged between the mesothelial cells of the tunica vaginalis.

Asbestos fibers are very difficult for the body to expel and can cause some surrounding cells to mutate into cancerous cells overtime. These cancerous cells then grow and divide far more rapidly than healthy cells, leading to a thickening of the membranes and the development of tumors. The cancer growth may begin on either sub-membrane but is likely to quickly spread to the other. Additionally, tumors on the testicles may be the primary cancer in the patient – or they may be secondary to peritoneal tumors.

Mesothelioma of the tunica vaginalis testis is the least common type of malignant mesothelioma. Testicular mesothelioma develops in the lining that surrounds the testicles, known as the tunica vaginalis, which provides protection and support for the reproductive organ. Since the testicles are the reproductive organs of the human body, it can be very dangerous if they are damaged by cancerous tumors. Most patients are in their 50s or older, but about ten percent of the patients are younger than 25 years.

More common testicular cancers include nonseminomas germ cell, seminomas germ cell or non-germ cell. Most frequently it is found as a palpable tumor, but it is also sometimes found during hernia repair. This finding can be associated with hydrocele, which is a fluid-filled sac surrounding the testicle, with or without a detectable mass. Testicular mesotheliomas are aggressive, and have a tendency to recur within two years, spreading to other areas such as nearby organs, lymph nodes, chest cavity, lungs, and the brain.

You can get all the types of Mesothelioma details on this blog.