TAILIEUCHUNG - Pathology of lymph node (Fourth edition): Part 2

(BQ) Continued part 1, part 2 of the document Pathology of lymph node (Fourth edition) has contents: Vaccinia lymphadenitis, measles lymphadenitis, human immunodeficiency virus lymphadenitis, ordinary bacterial lymphadenitis, cat-scratch lymphadenitis, syphilitic lymphadenitis, lymphogranuloma venereum lymphadenitis, . And other contents. Invite you to refer. | PART FIVE LYMPHOMAS For the hematopathologist involved in scientific research lymphomas and leukemias present the most challenging field of medical investigation one in which immunity and neoplasia interface and in which new concepts and techniques are constantly tested. For the practicing pathologist the important task of correctly diagnosing and classifying leukemias and lymphomas arises frequently and can be difficult. To establish the treatment and determine the prognosis Hodgkin and non-Hodgkin lymphomas must be identified and phenotyped. Non-Hodgkin lymphomas must be differentiated from Hodgkin lymphomas and both must be separated from the various types of non-neoplastic lymphadenopathies. Once identified they must be characterized morphologically immunologically and genotypically. An array of diagnostic methods and a wide variety of reagents and techniques unmatched by those in any other area of diagnostic pathology are available. It is incumbent on the practicing pathologist to set up standards and select methods that are most likely to facilitate the proper diagnosis at a reasonable cost. The incidence of lymphomas has been increasing world wide over the past several decades even before the start of the HIV epidemic for reasons unknown 1-2 . In 2006 in the United States the American Cancer Society statistics estimated 66 670 new cases of lymphoma resulting in 20 330 deaths. They include 7 800 Hodgkin and 58 870 non-Hodgkin lymphomas 34 870 in men and 31 800 in women making lymphoma the fourth most common malignant neoplasm of both genders in the United States 3 . In children leukemias and lymphomas are among the most common forms of neoplasia however the survival rates have considerably improved during the past decade. The epidemiology of lymphomas is varied with considerable geographic differences observed in the age of populations affected and in the predominant forms of disease. In the Western hemisphere and in higher socioeconomic groups B-cell .

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• Human immunodeficiency virus lymphadenitis
• Ordinary bacterial lymphadenitis
• Cat scratch lymphadenitis
• Syphilitic lymphadenitis
• Lymphogranuloma venereum lymphadenitis
• Ioachim’s lymph node pathology