One can find information about primary peritoneal carcinoma on a number of websites. Macmillan, wikipedia, and WebMD are few examples of websites where one can find information about primary peritoneal carcinoma.

lung cancer:primary or metastatic

primary:small cell carcinoma(25%) or non-small cell carcinoma(75%)

non-small cell carcinoma(75%):

squamous cell carcinoma(35%),

adenocarcinoma(25%),

large cell carcinoma(15%)

It is a good question! Liver is a common site for the secondary invasion of almost all type of cancers. But liver cells are not immune from getting converted into cancer cells. When this happens, it is called as primary liver carcinoma.

Seropositivity for hepatitis B surface antigen may be associated with hepatocellular carcinoma because hepatitis B virus infection is a common cause of cirrhosis.

Boris Mark Fried has written:

'Primary carcinoma of the lung'