[Pneumopathy due to Mycobacterium xenopei associated with monoclonal dysglobulinemia].
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Biomedical subjects
Publications and source records attributed to M Daussy.
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The authors report two new cases of angiofollicular hyperplasia of the mediastinum (Castelman's tumour). The only clinical peculiarity was a rapid increase in volume. The authors then review about 200 published cases. Emphasising the existence of 3 different histological types (plasma cell form, vascular hyaline form and intermediate form) and on the association in certain cases of hematological disorders such as anemia and hypergamma globulinemia. The significance of this lesion is discussed. An inflammatory theory with reactional hyperplasia of the beta-lymphocytes is proposed. It was supported by a direct immunofluorescent study of two cases (first study of this type carried out on such lesions) which showed polyclonal plasma cell hyperplasia predominating on the IgG.
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