Path- WBC Neoplasias Gomez Flashcards
proliferation centers
Small lymphocytic lymphoma
prolymphocyte
small lymphocytic lymphoma
smudge cells
chronic lymphocytic leukemia
peripheral T-cell lymphoma, unspecified
clinical features
mainly older adults; usually presents with lymphadenopathy; aggressive
T-cell neoplasm in children
anaplastic large-cell lymphoma
anaplastic large-cell lymphoma, genotype
ALK
anaplastic large-cell lymphoma, morphology finding
hallmark cells (horseshoe/kidney shaped)
ALK+ vs ALK-
ALK+ = can be treated, better prognosis. usually seen in children. ALK- = cannot be easily treated, worse prognosis, usually seen in older pt's
adult t-cell leukemia/lymphoma, genotype
HTLV-1
adult t-cell leukemia/lymphoma, cell marker
CD25, CD4
adult t-cell leukemia/lymphoma, clinical features
hypercalcemia cutaneous lesions marrow involvement pt's from Japan, West Africa, Caribbean aggressive
adult t-cell leukemia/lymphoma, morphology finding
cloverleaf nuclei
mycosis fungoides aka
Sézary syndrome
mycosis fungoides, clinical features
adults with cutaneous patches, plaques, nodules, or generalized erythema
indolent
Sezary syndrome
generalized exfoliative erythroderma
mycosis fungoides, morphologic finding
cerebriform nuclei
large granular lymphocytic leukemia, types
Cytotoxic T cell: indolent
NK cell: aggressive
large granular lymphocytic leukemia, associated syndrome
Felty syndrome
Felty syndrome
RA
splenomegaly
neutropenia
large granular lymphocytic leukemia, clinical features
adult pt with splenomegaly, neutropenia, anemia, sometimes accompanied by autoimmune disease
extranodal NK/T-cell lymphoma, genotype
EBV-associated
extranodal NK/T-cell lymphoma, cell marker
CD56
extranodal NK/T-cell lymphoma, clinical features
Adults with destructive extra nodal masses, most commonly sinonasal Aggressive. Midline lesions. Poor response to chemotherapy. Small vessel invasion.
MCC of acute leukemia associated with Down Syndrome
acute lymphoblastic leukemia
lymphoblastic neoplasms, special stains
PAS/Myeloperoxidase
B-cell acute lymphoblastic leukemia/lymphoma, genotype
chromosomal translocations (hyperdploidy)
t(12;21) involving RUNX1 and ETV6
t(9,22) BCR-ABL1
B-cell acute lymphoblastic leukemia/lymphoma, clinical features
predominantly children –> epistaxis and bleeding gums
sx relating to marrow replacement and pancytopenia
aggressive
B-cell acute lymphoblastic leukemia/lymphoma, cell markers
CD19, PAX5, sIg -, TdT +
B-cell acute lymphoblastic leukemia/lymphoma, prognosis
good for peds
bad for adults
T-cell acute lymphoblastic leukemia/lymphoma, genotype
chromosomal translocations
NOTCH1 in 70%
T-cell acute lymphoblastic leukemia/lymphoma, clinical features
predominantly adolescent males
thymic mass
variable bone marrow involvement
aggressive
T-cell acute lymphoblastic leukemia/lymphoma, cell markers
CD1, 2, 5, 7, TdT+
Hodgkin lymphoma, most common subtype
nodular sclerosis