Almost all prostate cancers develop from the cells that line the prostate gland – this type of cancer is called an adenocarcinoma. 

Other types of cells in the prostate can also develop into prostate cancer. These cancers are called: 

• sarcomas 
• small cell carcinomas 
• neuroendocrine tumours or transitional cell carcinomas 

These other types are all extremely rare. The information presented on this page is primarily related to prostate adenocarcinoma.