Is a full body pet scan good in the diagnosis of lymphoma ?

Helps with staging: Typically pet scans are used to know the extent of disease. The actual diagnosis of lymphoma, and what type of lymphoma, requires obtaining tissue so that a pathologist can make the diagnosis. Ct scans are also part of the staging process, and are usually used first to see if there is any evidence of lymphadenopathy before proceeding to a pet-scan.

Very good test: Pet/ct is used quite often in the initial diagnosis and restaging of many types of lymphoma. Lymphoma consumes glucose at a much higher rate than normal tissues. That makes pet/ct with f-18 fdg, which images glucose metabolism, is a great test for lymphoma.