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Besides the dysimmunitary and pseudo-lymphomatous adenopathies rich in immunoblasts and plasmocytes (ADPL type I) five cases showed similar clinical and biological data but with frequently otorhinolaryngologic location. The lesions are characterized by important structural changes and abundant epithelioid cells are comparable to Lukes' type III immunoblastic lymphadenopathies and to Lennert's lymphoepithelioid lymphomas. They must be distinguished from Hodgkin's granulomas which are rich in epithelioid cells. They are perhaps due to a disturbancy bearing mainly on the cellular immunity.
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