Several ways: It usually is evident where a cancer is arising from in the body. When difficult to tell, the pathologist can help determine the site of origin by running a battery of tests on the cancer cells such as special stains (uimmunostains), dna analysis, etc.
Answered 8/14/2012
5.7k views
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question