title: [Primary lymphosarcoma of the lung secreting immunoglobulin (author's transl)].
abstract: A case of primary lymphosarcoma of the lung with monoclonal seric dysglobulinemia of IgM type is reported in a 48-year-old man. This bilateral tumour consisted of lymphocytes with some plasmacytoïd and plasma-cells. There was no bone, liver or lymph node involvement. A 3-year follow-up shows clinical remission with continuous chlorambucil therapy. The interest of the observation lies in the rarity of secretory lymphosarcoma of the lung: only five cases have been reported. Nosologic and diagnostic problems of lymphocyte and plasma cell proliferations in the lung are discussed. The difficulty to differentiate diffuse hemopathy from localized lymphoma and tumour from pseudo-tumour is emphasized.
mesh_terms: D006801:Humans; D007075:Immunoglobulin M / Q000032:analysis*; D008175:Lung Neoplasms / Q000276:immunology* / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000276:immunology* / Q000473:pathology; D008297:Male; D008875:Middle Aged
chemical_list: D007075:Immunoglobulin M
vernacular_title: Lymphomes pulmonaires primitifs immuno-sécrétants.