Staging of prostate cancer clinical significance

Stages of prostate cancer will help to understand the scope of diseases to determine prognosis and to develop treatment programs. The development of prostate cancer vary widely, the period of the development of prostate cancer does not necessarily according to the first phase (A) to IV (D) order. The first phase of cancer may remain in the long-term period, can be transformed into the third phase (C) or the fourth. The second phase (B), the third phase of cancer development is all about. Phases of the development of prostate cancer are as follows:

Phase A1: not to deal with the elderly. Opportunities for distant metastasis occurred in 8%, 2% died of cancer in 5-10 years.

A2 period: 30% of distant metastasis, 20% died of cancer in 5-10 years.

B1 period: 30% in 5 years, the occurrence of metastasis, 20% died of prostate cancer.

Phase B2: 80% occurred in the transfer of 5-10 years, 70% died of prostate cancer.

C period: 50% distant metastasis in 5 years, 75% died of cancer in 10 years.

D1 period: 85% of distant metastasis in 5 years, the vast majority of cancer deaths in 3 years.

D2 period: 50% died of prostate cancer 3 years, 80% died of cancer in 5 years, 90% died of cancer in 10 years.

Prognosis of prostate cancer with a clear relationship between the phases. According to a group of post-operative follow-up results of patients, the 5-year survival rate A period of 78.9%; B for 86.1%; C for 66.7%; D for 25%. A period of 10-year survival rate for 63.1%; B for 61.6%; C for 28.6%; D for 0.

Stages of prostate cancer, the literature of statistical data for the A phase, respectively, accounting for 10% ~ 20%; B period accounted for 25%; C period accounted for 25%; D period accounted for 30%. Was found that more than half of the lesions is not limited to, clinical stage and lesion often lower than the actual range.