The normal lymph node and spleen. Infectious and granulomatous conditions of lymph nodes. Lymphadenopathy simulating malignant lymphoma. Hodgkin's disease. The classification and terminology of malignant lymphoma other than Hodkin's disease. Lymphocytic-plasmacytic lymphomas. Malignant lymphomas derived from follicle centre cells and malignant lymphoma: immunoblastic. Burkitt's lymphoma and tumours of similar morphology. T-cell lymphomas. Malignant lymphomas of the monocyte/macrophage system (histiocytic lymphomas). Miscellaneous. Extranodal malignant lymphomas. Technical methods for lymphoreticular biopsies.