pt. 1. The normal lymph node. The normal lymph node -- pt. 2. Diagnostic methods. The lymph node biopsy -- Cytopathology -- Electron microscopy -- Cytochemistry -- Immunohistochemistry -- Flow cytometry -- Molecular diagnosis -- pt. 3. Lymphadenitides. Sect. I. Viral lymphadenitides. Infectious mononucleosis lymphadenitis -- Cytomegalovirus lymphadenitis -- Herpes simplex virus lymphadenitis -- Vericella-herpes zoster lymphadenitis -- Vaccinia lymphadenitis -- Measles lymphadenitis -- Human immunodeficiency virus lymphadenitis -- Sect. II. Bacterial lymphadenitides. Ordinary bacterial lymphadenitis -- Cat-scratch lymphadenitis -- Bacillary angiomatosis of lymph nodes -- Lymphogranuloma venereum lymphadenitis -- Syphilitic lymphadenitis -- Lymphadenitis of Whipple disease -- Sect. III. Mycobacterial lymphadenitides. Mycobacterium tuberculosis lymphadenitis -- Nontuberculous mycobacterial lymphadenitis. A. Atypical mycobacterial lymphadenitides -- B. Mycobacterium avium-intracellulare lymphadenitis. Mycobacterium leprae lymphadenitis -- Sect. IV. Fungal lymphadenitides. Cryptococcus lymphadenitis -- Histoplasma lymphadenitis -- Coccidioidomycosis lymphadenitis -- Pneumocystis lymphadenitis -- Sect. V. Protozoal lymphadenitides. Toxoplasma lymphadenitis -- Leishmania lymphadenitis -- Filaria lymphadenitis -- pt. 4. Lymphadenopathies. Sect. I. Reactive lymphadenopathies. Reactive lymphoid hyperplasia -- Atypical lymphoid hyperplasia -- Progressive transformation of germinal centers -- Sect. II. Lymphadenopathies associated with clinical syndromes. Kimura lymphadenopathy -- Sinus histiocytosis with massive lymphadenopathy -- Kikuchi lymphadenopathy -- Sarcoidosis lymphadenopathy -- Systemic lupus lymphadenopathy -- Rheumatoid lymphadenopathy -- Dermatopathic lymphadenopathy -- Castleman lymphadenopathy -- Lymphadenopathies of salivary glands -- Tumor-reactive lymphadenopathy -- Sect. III. Iatrogenic lymphadenopathies. Drug-induced lymphadenopathy: methotrexate -- Drug-induced lymphadenopathy. Sect. IV. Vascular lymphadenopathies. Lymph node infarction -- Vascular transformation of sinuses -- Sect. V. Foreign body lymphadenopathies. Proteinaceous lymphadenopathy -- Lipid lymphadenopathy -- Silicone lymphadenopathy -- Lymphadenopathy of metal debris associated with joint prostheses -- Gold lymphadenopathy -- Sect. VI. Lymph node inclusions. Epithelial cell inclusions in lymph nodes -- Nevus cell inclusions in lymph nodes -- pt. 5. Lymphomas. Sect. I. Nomenclature and classification of lymphomas. Nomenclature and classification of lymphomas -- Sect. II. Hodgkin lymphoma. Hodgkin lymphoma: classical -- Hodgkin lymphoma: nodular lymphocyte predominant -- Sect. III. Precursor B-cell and T-cell neoplasms. Lymphoblastic leukemia/lymphoma -- Sect. IV. Mature B-cell neoplasms. Chronic lymphocytic leukemia/small lymphocytic lymphoma -- Lymphoplasmacytic lymphoma -- Hairy cell leukemia -- Nodal marginal zone B-cell lymphoma -- Follicular lymphoma -- Diffuse follicle center cell lymphoma -- Mantle cell lymphoma -- Diffuse large B-cell lymphoma. Mediastinal large B-cell lymphoma -- Burkitt lymphoma -- Lymphomas of salivary glands -- Composite lymphoma -- Sect. V. Mature T-cell neoplasms. Adult T-cell leukemia/lymphoma -- Mycosis fungoides -- Peripheral T-cell lymphoma, unspecified -- Angioimmunoblastic T-cell lymphoma -- Anaplastic large-cell lymphoma -- pt. 6. Granulocytic, histiocytic, and dendritic cell neoplasms. Mycloid sarcoma -- Histiocytic sarcoma -- Dendritic cell neoplasms -- pt. 7. Lymphoproliferative disorders associated with immune deficiency. Lymphoproliferative disorders associated with congenital immune deficiencies -- Post-transplant lymphoproliferative disorders -- Lymphomas associated with Acquired Immunodeficiency Syndrome (AIDS) -- pt. 8. Spindle cell neoplasms of lymph nodes. Palisaded myofibroblastoma -- Inflammatory pseudotumor of lymph nodes -- pt. 9. Vascular neoplasms of lymph nodes. Hemangiomas/hemangioendotheliomas -- Kaposi Sarcoma. pt. 10. Metastatic tumors in lymph nodes. Tumor metastases in lymph nodes -- Metastatic melanoma -- Metastatic breast carcinoma -- Metastatic nasopharyngeal carcinoma -- Metastatic papillary thyroid carcinoma -- Metastatic renal cell carcinoma -- Metastatic seminoma -- Metastatic prostatic carcinoma -- Metastatic mucinous adenocarcinoma -- Metastatic neuroendocrine tumors -- Metastatic neuroblastoma -- Metastatic Ewing sarcoma/peripheral neuroectodermal tumor -- Metastatic rhabdomyosarcoma.