the levels of the purine catabolic enzymes , adenosine deaminase ( ada ) and purine nucleoside phosphorylase ( pnp ) , together with the pyrimidine activities , thymidine phosphorylase ( tp ) and thymidine kinase isozymes ( tk ) have been determined for cells obtained from solid lymphoid tissue of 38 patients with non-hodgkin 's lymphoma ( nhl ) and 14 individuals exhibiting benign reactive lymphoid hyperplasia .
C0024296
lymphoid tissue
C0024305
non-hodgkin 's lymphoma