Considering the cutoff value of 40 U/L, only in two cases, ADA decreased below this threshold, which concerned a man with tuberculous pleurisy and a woman with lymphoma both in the course of treatment.
Serum ADA levels were measured in 20 cases with lymphoma-associated hemophagocytic syndrome (LAHS), 15 with infection-associated hemophagocytic syndrome (IAHS), six with macrophage activation syndrome (MAS) as experimental group.