Occupation and testicular cancer.

Occupation and prostate cancer.

The descriptive epidemiology of prostate cancer, including international comparisons of incidence, temporal trends, social class gradients, and migrant studies, suggests that incidence varies greatly and that exogenous factors may play an important etiologic role (1, 2). Despite attempts to investigate the roles of several classes of exogenous agents, there are still no definitely recognized ex...

Occupation and Cancer

Occupational cancer is malignant neoplasm caused by exposures to carcinogenic agents at workplace. It is estimated that one out of every three people will subsequently develop cancer during their lifetime in industrialized countries. Undeveloped countries are also at increasing risk due to transfer of hazardous industries. An occupational cancer does not differ either pathologically or clinical...

Occupation, smoking, and lung cancer.

Testicular Cancer and Cryptorchidism

The failure of testicular descent or cryptorchidism is the most common defect in newborn boys. The descent of the testes during development is controlled by insulin-like 3 peptide and steroid hormones produced in testicular Leydig cells, as well as by various genetic and developmental factors. While in some cases the association with genetic abnormalities and environmental causes has been shown...

Testicular cancer

Testicular cancer is cancer that develops in the testicles, a part of the male reproductive system. Although testicular cancer can be derived from any cell type found in the testicles, more than 95% of testicular cancers are germ cell tumors. Most of the remaining 5% are sex cord-gonadal stromal tumors derived from Leydig cells or Sertoli cells. Over man's lifetime, his risk of testicular cance...