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Description

ANTIGEN DISTRIBUTION: Isolated cells: Absent on freshly isolated monocytes and other blood cells, present on 40-50% of human monocytes after 6-7 day culture, also positive on some melanoma and carcinoma cell lines. Tissue sections: Kupffer cells, histiocytes (skin), macrophages of the thymus, in the germinal centers of lymph nodes and spleen, in mamma carcinoma, melanoma, osteocarcinoma and gastric cancer, excema, sarcoidosis, BCG granuloma, synovial lining cells, tuberculoid leprosy, no expression in lepramatous leprosy.