Testicular Cancer Research Trends

Download or read book Testicular Cancer Research Trends written by Paulo V. Brantus and published by Nova Publishers. This book was released on 2007 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seminomas account for about 30-40% of all testicular tumours. These are usually is found in men in their 30s and 40s. The condition is usually localised to the testes, although in about 25% of cases it has spread to lymph nodes. Non-seminomas account for 60% of all testicular tumours; subcategories of these tumours are listed below. Non-seminoma tumours often contain more than one of the following cell types: Testicular cancer is an abnormal, rapid, and invasive growth of cancerous (malignant) cells in the testicles. Embryonal carcinoma (about 20% of testicular cancers) occurs in 20-30 year olds and is highly malignant. It grows rapidly and spreads to the lung and liver. Yolk sac tumour (about 60% of all testicular cancers in young boys). Teratomata (about 7% of testicular cancers in adult men and 40% in young boys). Choriocarcinoma is rare. Stromal cell tumours are a kind of tumour that is made of Leydig cells (testosterone-secreting cells), Sertoli cells (cells where sperm matures), and granulose cells. These tumours account for only 3-4% of all testicular tumours. However, they do make up nearly 20% of all childhood testicular tumours. These tumours may secrete a hormone -- estradiol -- that can cause one of the symptoms of testicular cancer, gynecomastia (excessive development of breast tissue). This book presents leading-edge research in the field.