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Hodgkins Disease, N.O.S.
Etiology

Unknown
Pathogenesis

Neoplastic cell line may be very few in number (LP type) to plentiful (LD)
Inflammatory reaction driven by cytokines secreted by neoplastic cells including IL 5 (attracting eosinophils), IL4, tumor necrosis factor alpha, GM-CSF usually forms bulk of tumor,
Epidemiology

0.7% of all new cancers in the U.S. overall
Average age 32 years old
General Gross Description

Nodes may range from small to large and are fleshy
Some variants show nodularity (LP and NS)
Some variants show fibrosis (LD and NS)
•Examples:
General Microscopic Description

Four major types: nodular sclerosing (NS), lymphocyte predominant (LP), mixed cellularity (MC), and lymphocyte depleted (LD)
All contain diagnostic binucleate Reed-Sternberg cells with eosinophilic macronucleoli
Mononuclear Reed-Sternberg variants differ from subtype to subtype
Background is a mixture of lymphocytes, plasma cells and eosinophils depending on subtype
•Examples:
Clinical Correlation

Most present in cervical lymph nodes
Spread to continguous nodal groups
Generally very responsive to chemotherapy +/- radiation
References

Jaffe ES, Surgical Pathology of the Lymph Nodes and related organs, 2nd edition, Philadelphia, W.B. Saunders, 1995, pp. 141-178

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Hodgkins Disease, N.O.S.
Synopsis by: Melinda Sanders M.D. (T08000M96503)[323]
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