Lymphoid Neoplasms: Follicular Lymphoma and DBCL Flashcards
Follicular Lymphoma staining
Bcl-2
Larger cells seen in follicular lymphomas indicate what about the lymphoma?
It has a worse prognosis
Where are the neoplastic cells in follicular lymphoma located?
germinal center
Nodular infiltrate of small, cleaved lymphocytes w/ admixed large cells, incomplete mantle zone or no mantla zone at all as well as lack of tingible body macrophages allow us to distinguish follicular lymphoma from
reactive lymphoid tissue
Genetics of Follicular Lymphoma
t(14;18): overexpression of Bcl-2
Diffuse Large B cell lymphoma presents frequently w/ what sort of nodal findings
extranodal presentation
Diffuse Large B cell lymphoma is aggressive or not aggressive?
Aggressive
CD markers for Diffuse Large B cell lymphoma
CD 19+, CD20+, CD10+/-, CD5-, slg + (clonal)
CD markers for Follicular Lymphoma
CD19+, CD20+, CD10+, CD5-, slg + (clonal)
Viruses associated with Diffuse Large B cell lymphoma
KSHV, HHV8, EBV