Prostate Cancer
Time:2009-11-06 10:21 Author:admin Hits:
Prostate cancer is the male reproductive system common malignant tumor. Prostate cancer, genitourinary system tumors account for about 4%. Old age in men is more common forms of cancer. Almost all prostate cancer occurs in the lateral prostate, showing latent slow-growing, therefore, cancer is very small without any clinical manifestations. And benign prostate enlargement and prostatitis produce similar symptoms and cancer. Prostate cancer may be related to age, high-fat, vasectomies, genetic factors, smoking, contact with heavy metals, inappropriate and sexually transmitted diseases related to sexual life.
Prostate cancer is the United States over the age of 50 the most common male malignancy by 10 years of age, the incidence of each increase. The United States each year is about 209.9 thousand new cases of people (1997 estimate). Prostatic sarcoma rare, mainly in children. Undifferentiated prostate cancer, squamous cell carcinoma and transitional cell carcinoma can also be found, but poor performance commonly used control methods. hormonal influence and the occurrence of certain of the cancer, but sarcoma, undifferentiated carcinoma, squamous cell carcinoma and transitional cell carcinoma is almost certainly unrelated to .
Prostate cancer is usually adenoid, compared with the normal histological structure similar to the prostate. Is characterized by small-cell hyperplasia and large nucleoli. According to the structure of classification, common Gleason score, the main (most popular) classification (1 ~ 5) with secondary (sub-popular) classification (1 ~ 5); thus can be divided into from 2 (well differentiated) to 10 (poorly differentiated).
Prostate cancer is usually adenoid, compared with the normal histological structure similar to the prostate. Is characterized by small-cell hyperplasia and large nucleoli. According to the structure of classification, common Gleason score, the main (most popular) classification (1 ~ 5) with secondary (sub-popular) classification (1 ~ 5); thus can be divided into from 2 (well differentiated) to 10 (poorly differentiated).
