What Is Prostate Cancer?
Cancer grows when cells in the body start to grow out of control. Cells in nearly any part of the body can turn into cancer cells, and can attatck to other areas of the body.
Prostate cancer starts when cells in the prostate gland begin to develop uncontrollably. The prostate is a gland present only in males. It makes some of the fluid that is part of semen.
The prostate is benaeath the bladder and in front of the rectum. The magnitude of the prostate changes with age. In younger men, it is about the magnitude of a walnut, but it can be much larger in older men.
Just behind the prostate are glands called seminal vesicles that make maximum of the fluid for semen. The urethra, which is the tube that transports urine and semen out of the body through the penis, goes through the middle of the prostate.
Types of prostate cancer
Almost maximum prostate cancers are adenocarcinomas. These cancers grows from the gland cells.
Other types of prostate cancer include:
Possible pre-cancerous conditions of the prostate
Some research suggests that prostate cancer grows out as a pre-cancerous condition, although this is not yet known for sure. These conditions are sometimes invetigated when a man has a prostate biopsy (removal of minor pieces of the prostate to investigate for cancer).
Prostatic intraepithelial neoplasia (PIN)
In PIN, there are changes in how the prostate gland cells look beneath a microscope, but the abnormal cells don’t look like they are developing into other parts of the prostate (like cancer tumors would). Based on how abnormal the patterns of cells look, they are classified as:
Low-grade PIN: the patterns of prostate cells appear mostly normal
High-grade PIN: the patterns of cells look more unusual
PIN begins to be found in the prostates of some men as early as in their 20s.
Most of the men start to develop low-grade PIN when they are in young age but don’t certainly grow prostate cancer. The possible link between low-grade PIN and prostate cancer is still not found.
If high-grade PIN is identified in your prostate biopsy sample, there is about a 20% chance that you also have cancer present in another area of your prostate.