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Pathology
Since 1944, several classifications have been proposed for Hodgkin lymphoma (HL). Currently, the World Health Organization (WHO) Classification of Hematologic Malignancies is used:
Lymphocyte predominant, nodular (NLPHL) (5%)
Classic
Lymphocyte-rich (LRCHL) (5%)
Nodular sclerosis (NSHL) (60–80%)
Mixed cellularity (MCHL) (15–30%)
Lymphocyte depleted (LDHL) (1%)
Unclassifiable (<1%)
Jaffe ES, Harris NL, Stein H, Vardiman JW, eds. World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of Haematopoietic and Lymphoid Tissues. Lyon, France: IARC Press, 2001
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Work-up
History and physical exam
Laboratory tests: CBC with differential, ESR, electrolytes, albumin, liver function tests, mineral panel, LDH
HIV and hepatitis B and C serologies as clinically indicated
Chest x-ray (PA and lateral)
CT scan of chest, abdomen, and pelvis (and neck in selected cases)
Positron emission tomography (PET) scan if clinically indicated (equivocal CT)
Bone marrow aspirate and biopsy
Pulmonary function tests
Echocardiogram or MUGA scan to determine cardiac ejection fraction
Excisional lymph node biopsy to completely assess lymph node architecture is required at initial diagnosis. Fine-needle aspiration biopsy alone is not desirable for the initial diagnosis of lymphoma
Fertility counseling, if appropriate
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