Overview of testicular cancer

Overview of testicular cancer, (a) the cause of testicular cancer is still not entirely clear, but some factors and the incidence of cancer has its system.
1. Age factor of about 3% in 20-40 years. There are three high incidence nap period, respectively infancy, adolescence and old age early. Infants embryonal carcinoma and teratoma mainly seminoma rare; among young people to teratogenic cancer, embryonal carcinoma and choriocarcinoma common; old group Zeyi seminoma common.
2. Genetic factors may have some effect. In some cases the family history of high incidence of twin brothers.
3. Cryptorchid cryptorchidism or incomplete testicular descent have a tendency to induce testicular cancer. About 1 / 20 abdominal testicular tumor can occur. Cryptorchidism or incomplete testicular descent are prone to cancer of the factors:
(1) The blood supply to the barrier. The site of the tumor in the incidence of cryptorchidism can be found around blood vessels fibrosis, hyaline change and thickening, suggesting a long-term ischemia.
(2) testes contain abnormal germ cells, is the original tumor tissue.
(3), cryptorchidism, especially in bilateral cases, the endocrine disorder, low levels of hCG in vivo.
(4) gonadal dysplasia. Although it has been orchiopexy, but still can not get 50% of cases of germ cell maturation. This may be cryptorchid testes of those songs their own germ tube development blocked.
4. Endocrine disorders, testicular cancer occurs in the majority of androgen activity is brisk early Qing. The incidence of cryptorchidism, especially those about 10% of bilateral gonadal function is impaired, but often other reproductive tract abnormalities.
5. Frequently infected with testicular cancer are a history of relying on pills inflammation and tenderness often accompanied by dark film plot. Mumps orchitis caused by viral infection and infection after the change in internal factors may stimulate the cancer.
6. Injury Mechanical injury can damage the endocrine balance, promote cancer. Play reported in testicular tumors, there is a history of trauma accounted for 7%. Damage and can easily find an existing cancer or cause symptoms.
Overview of testicular cancer (b) Clinical manifestations
(1), testicular swelling, scrotal bulge, some patients have pain. Mass was generally smooth and round, occasionally nodular, most non-tender, hard mass in the lack of flexibility. Small number of cases with testicular dark cloth effusion.
(2) some cases due to trauma, inflammation was only found in tumor treatment.
(3) about 10% of the cases, often due to secondary infection and fever, scrotal swelling, inflammation or testicle resembles acute epididymitis.
(4) transfer of some patients may show symptoms first. About 10% of clinic patients with varying degrees of transfer.
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