Chapters 12-4,5,6,7: Subtypes of classical Hodgkin lymphoma Flashcards
morphology of NSCHL characterized by
collagen bands surrounding at least 1 nodule, and lacunar type cells
Mediastinal involvement occurs in __% of NSCHL
80%
what is the “syncytial variant” of NSCHL?
aggregates of lacunar cells resembling granulomas
Prognosis of NSCHL
better than other CHLs
MIxed cellularity CHL is seen more frequently in
HIV+ and developing countries
Histiocytes in MC-CHL may be particularly epithelioid it
EBV assd
% of MC-CHL that are LMP1/EBER+
75%
Defining features of Lymphocyte rich CHL
absense of PMNs and eos
Age range for lymph rich CHL
significantly higher than other CHL
Growth patterns of lymph rich CHL
nodular (common)
diffuse (rare)
Nodules in lymph rich CHL represent expanded___
Mantle zones (IgM+D+)
Granulocytes may be present in what areas in lymph rich CHL
interfollicular zones
lymph depleated CHL has predilection for what areas
retroperitoneal LN, solid organs, Bone marrow
Unifying feature of lymph depleated CHL
predominance of HRS cells compared to non-neoplastic inflammatory cells