Regional disorder of lymph network and of cellular immunity in classic Kaposi's sarcoma

Lymphoscopy and lymphography revealed important changes in the lymph circulation of 4 out of 5 patients (dermal backflow on lymphoscopy and pictures of lymph 'lakes' on lymphographies). In the same patients the results of the challenge test were continuously negative on the diseased leg and positive on the arm after 48 hours. The DNCB test was positive on the arm as well as on the leg in the patient with an adequate lymph circulation. The Tranc smears showed an increased number of lymphocytes and several tadpole cells in all positive reactions to DNCB.