title: [Lymph node lesions simulating a malignant lymphoma].
abstract: Examples are reported of lymph node lesions simulating histologically and/or clinically malignant lymphomas. Two main categories of alterations have been distinguished: A. hyperplastic lymph node alterations associated with systemic disease and/or viral or drug-induced lymphadenitis; B. anatomo-clinical entities such as giant lymph node hyperplasia, massive lymphadenopathy with sinus histiocytosis, and angio-immunoblastic lymphadenopathy. It is suggested that in some situations such as angio-immunoblastic lymphadenopathy the borderline between reactive and enoplastic alterations is not clear cut. To evaluate such changes, close collaboration between the clinician, the hematologist and the patholigist is necessary.
mesh_terms: D003951:Diagnostic Errors; D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology; D006801:Humans; D007119:Immunoblastic Lymphadenopathy / Q000175:diagnosis; D007244:Infectious Mononucleosis / Q000175:diagnosis / Q000473:pathology; D008206:Lymphatic Diseases / Q000175:diagnosis* / Q000473:pathology; D008223:Lymphoma / Q000175:diagnosis*
vernacular_title: Les lymphadénopathies simulant un lymphome malin.