[In vitro cellular immunity in lymphoproliferative skin diseases. Inhibitory factor of macrophages]

27 patients affected of lymphoproliferative processes, 9 with different non-granulomatous dermatosis and 40 controls are studied by the authors. The technique David & David is used to determine the inhibition of the migration of macrophages in capillary tubes, adding to the culture medium the serum of the patient. They find MIF-like activity in the serum of three patients affected by the sezary syndrome. All sutdied cases of cutaneous lymphoma, non granulomatous dermatosis and healthy controls are negative.