To evaluate the value of the imaging of 99Tcm labeled human immunoglobulin G(HIgG) in the early diag-nosis and the assessment of the therapy of Behcet’s Disease

the imaging was performed on five cases of chronic ery-thema nodosum and six of Behcet’s Disease with the lesions of erythema nodosum

and repeated after the therapy. Five patients of chronic erythema nodosum showed increased uptake of 99Tcm-HIgG in subcutis

and decreased after the therapy. Six of Behcet’s showed intense uptake in subcutis and around the blood vessels

and two of them also showed increased uptake of the joints. The images after the therapy were normal. It is concluded that the imaging of 99Tcm-HIgG is simple

safe and noninvasive

and it will be a help to diagnosis of Behcet’s in early stage

improvement of prognosis and assessment of the therapy.