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The vast majority of testicular cancers (approximately 90-95%) originate from "germ cells," which are responsible for sperm production. These cancers are primarily categorized into two main types: Seminoma and Non-seminoma.
Seminoma Tumors:
These types of tumors tend to grow more slowly than non-seminoma types. They are generally observed between the ages of 25 and 45, but can also occur at older ages.
Non-seminoma Tumors:
Non-seminoma tumors tend to grow more rapidly compared to seminoma cancers. There are four main subtypes: Teratoma, choriocarcinoma, yolk sac tumor, and embryonal carcinoma. These cancers are typically diagnosed in late adolescence and the early 30s.
Other Testicular Tumors:
Beyond germ cell tumors, or sometimes in conjunction with them, other types of testicular tumors exist:
* Mixed Germ Cell Tumors: Some testicular cancers may include a combination of seminoma and non-seminoma cells, or a mixture of different non-seminoma subtypes.
* Stromal Tumors: These tumors originate from the cells within the supportive and hormone-producing tissues of the testicles. They are mostly benign and are treated with surgical intervention.
Intratubular Germ Cell Neoplasia (ITGCN):
Some testicular cancers develop from a condition known as ITGCN. In this condition, the cells are abnormal but have not spread beyond the area where sperm cells develop; meaning it is not yet cancer. However, ITGCN carries approximately a 50% risk of transforming into invasive testicular cancer within five years. ITGCN is detected in about 5% to 10% of individuals diagnosed with testicular cancer. ITGCN shares similar risk factors with testicular cancer. Its diagnosis is challenging due to the absence of symptoms and can only be confirmed by examining tissue samples.
What are the Types of Testicular Cancer?
Seminoma Tumors:
These types of tumors tend to grow more slowly than non-seminoma types. They are generally observed between the ages of 25 and 45, but can also occur at older ages.
Non-seminoma Tumors:
Non-seminoma tumors tend to grow more rapidly compared to seminoma cancers. There are four main subtypes: Teratoma, choriocarcinoma, yolk sac tumor, and embryonal carcinoma. These cancers are typically diagnosed in late adolescence and the early 30s.
Other Testicular Tumors:
Beyond germ cell tumors, or sometimes in conjunction with them, other types of testicular tumors exist:
* Mixed Germ Cell Tumors: Some testicular cancers may include a combination of seminoma and non-seminoma cells, or a mixture of different non-seminoma subtypes.
* Stromal Tumors: These tumors originate from the cells within the supportive and hormone-producing tissues of the testicles. They are mostly benign and are treated with surgical intervention.
Intratubular Germ Cell Neoplasia (ITGCN):
Some testicular cancers develop from a condition known as ITGCN. In this condition, the cells are abnormal but have not spread beyond the area where sperm cells develop; meaning it is not yet cancer. However, ITGCN carries approximately a 50% risk of transforming into invasive testicular cancer within five years. ITGCN is detected in about 5% to 10% of individuals diagnosed with testicular cancer. ITGCN shares similar risk factors with testicular cancer. Its diagnosis is challenging due to the absence of symptoms and can only be confirmed by examining tissue samples.