hodgkin lymphoma - pathkids.com · 2008. 11. 25. · classical hodgkin lymphoma ¥nodular sclerosis...
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HODGKIN LYMPHOMA
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• Thomas Hodgkin
• Curator of Guy’s Hospital Pathology
Museum.
• Six cases
• Medical – Chirurgical Society 1832
• ‘On some morbid appearances of the
absorbent glands and spleen’.
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Sir Samuel Wilks
• Physician at Guy’s Hospital.
• ‘Hodgkin’s Disease’
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WHO Classification of Hodgkin
Lymphoma
• Classical Hodgkin lymphoma
• Nodular lymphocyte predominant
Hodgkin lymphoma
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HODGKIN LYMPHOMA
• Youngish adults
• Cervical lymphadenopathy – common
• Mesenteric node and primary extranodal
disease – rare.
• Admixture
– Large multinucleated/multilobated cells
– Greater number of stromal cells
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Classical Hodgkin Lymphoma
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HRS Phenotype
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What type of cell is the HRS
cell?
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ANN ARBOR STAGING
• Stage I: Single LN group/structure
• Stage II: Two or more LNgroups/structures, on same side ofdiaphragm.
• Stage III: LN groups/structures on bothsides of diaphragm.
• Stage IV: Extranodal site(s) (liver, bonemarrow).
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CLASSICAL HODGKIN
LYMPHOMA
• Nodular sclerosis
• Mixed cellularity
• Lymphocyte rich
• Lymphocyte depleted
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CLASSICAL HODGKIN
LYMPHOMA
• Nodular sclerosis 70%
• Mixed cellularity 25%
• Lymphocyte rich 5%
• Lymphocyte depleted ?
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NODULAR SCLEROSIS HL
• Definition
– Classic HL
– Collagen bands forming at least one nodule
– Lacunar-type HRS cells
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BNL I Grading NSHL
• Grade 1
• Grade 2 - 25% or more nodules show
HRS cells in sheets
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NODULAR SCLEROSIS HL
• 70% of classical HL
• Male = female
• Median age 28
• Stage II disease most common
• Mediastinal disease 80%
• Spleen and/or lung 10% - Bone marrow 3%
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MIXED CELLULARITY HL
• 25% of classical HL
• 70% male
• Median age 37
• Associated with HIV
• More frequent in developing countries
• Often Stage III or IV. B symptoms frequent
• Peripheral nodes usually involved
• Mediastinal involvement rare
• Spleen 30% - Bone marrow 10%
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INTERFOLLICULAR HL
A subset of Mixed Cellularity HL
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LYMPHOCYTE RICH HL
• 5% of HL
• Usually Stage I or II
• Mediastinal involvement rare
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LYMPHOCYTE DEPLETED
HL
• Very rare
• Diffuse growth pattern
• 75% male predominance
• Associated with HIV
• Superficial LNs often spared
• Abdominal and BM involvement frequent
• Usually advanced stage disease
• Usually B symptoms
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CLASSICAL HL
DIFFERENTIAL DIAGNOSIS
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HRS-like cells
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CD30 Positive Proliferations
• Reactive blasts
• HRS cells
• Anaplastic large cell lymphoma
• Lymphomatoid papulosis
• Some DLBCL
• Some peripheral T NHL
• Some mastocytosis
• A rare case of FL
• Non-lymphoid (embryonal carcinoma)
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Reactive