Imaging is the more definitive way to monitor disease direction - as it's more specific to the condition (measuring changes in the size and number of enlarged lymph nodes).
Many lab results, such as LDH, can be influenced by factors unrelated to lymphoma, such as injury and infection.
For example, if all of the following are elevated, might it indicate you have lymphoma as reliably as elevated PSA predicts for prostate cancer?
Such as: CD25, LDH, IL-6 Beta2-microglobulin, LDH..."In Hodgkins lymphoma patients, a significant association was found between the level of S-beta 2M and stage of disease (P less than 0.05) and presence of splenomegaly (P less than 0.05).
Rheumatology 2003;39, Eur J Haematol 2005;2-526 31. Arthritis Rheumatism 2002;4622, Respir Med 2007 Mar 10, Clin Rheumatol 2009;9646, Curr Rheumatol Rep 2012; Feb 25 33.