Hodgkin Lymphomas Flashcards
acute leukemia morphology
immature cells (blasts)
chronic leukemia morphology
mature or maturing cells
acute leukemia cellular mechanism
maturation arrest
chronic leukemia cellular mechanism
increased proliferation or decreased apoptosis
acute leukemia clinical symptoms
bone marrow failure leads to bleeding, infections, fatigue
chronic leukemia clinical symptoms
nonspecific: organ infiltration, leukocytosis, late marrow failure
neoplastic cell in hodgkin lymphomas
reed sternburg cell: binucleated cell with prominent eosinophilic inclusion like nuclei. owl eyes
epidemiology of hodgkin lymphoma
uncommon, bimodal age curve (15-35 and 50+), both sexes evenly
clinical presentation of HL
painless lymphadenopathy (mostly cervical), fever, night sweats, weight loss, infections
pattern of HL spread
unifocal, contiguous, lymphatic spread. doesn’t jump around. goes in order
characteristic of HL lymph node biopsy
less than 1% of cells will be reed stern burg cells. 99% are reactive, nonmalignant cellular infiltrate
origin of HL neoplasms
B cells from germinal center
classical HL
nodular sclerosis, mixed cellularity, lymphocyte depletion or enrichment. diffuse or nodular growth.
immunophenotype of classic HL
CD15+ (mature myeloid antigen)
CD30+ (not lineage specific)
PAX5+ (B cell)
nodular lymphocyte prodominant HL
only about 5% of HLs. nodular growth, popcorn like cells with small lymphocytic background