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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%)
Swerdlow SH et al (editors). WHO classification of tumours of haematopoietic and lymphoid tissues. In: Bosman FT, Jaffe ES, Lakhani SR, Ohgaki H (editors). World Health Organization Classification of Tumours. Lyon, France: IARC; 2008
Swerdlow SH et al. Blood 2016;127:2375–2390
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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
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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