WBC Disorders VI Flashcards
maltomas
marginal zone lymphoma
extranodal marginal zone lymphomas
continuum between reactive hyperplasia and lymphoma
begin as polyclonal
sjogren
salivary - may lead to marginal zone lymphoma
hashimotos
thyroiditis - may lead to marginal one lymphoma
helicobacter
h. pyloric - chronic gastritis - may lead to marginal zone lymphoma
BRAF mutation
hairy cell mutation
prognosis of hairy cell
excellent
-gentle chemo - remission
atypical mycobacterial infections
hairy cell leukemia
hairy cell leukemia demo
middle age white male
55yo
dry tap
hairy cell leukemia
fibrosis of marrow
massive splenomegaly
hairy cell leukemia
massive splenomegaly, atypical mycobacterial infection, pancytopenia
hairy cell leukemia
far east
more common to have T cell/NK cell neoplasms
gene rearrangement in ALK on chromosome 2p23
anaplastic large cell lymphoma
also CD30
hallmark cells
anaplastic large cell lymphoma
large anaplastic cells with horseshoe nuclei and voluminous cytoplasm
cluster around venules and infiltrate lymphoid sinuses
anaplastic large cell lymphoma
peripheral T cell lymphoma, unspecified
lymphadenopathy, eosinophilia, pruritis, weight loss
not good prognosis
anaplastic large cell lymphoma prognosis
children with ALK - good
adults no ALK - bad
CD30+
anaplastic large cell lymphoma
and hodgkins
HTLV-1 infection
adult T cell leukemia/lymphoma
japan, w. africa, caribbean
adult T cell leukemia/lymphoma
demyelinating disease of CNS and spinal cord
clover leaf, flower cells
adult T cell leukemia/lymphoma
adult T cell leukemia/lymphoma prognosis
rapidly progressive
-fatal
only skin - more indolent course
tumor of CD4 helper T cells that homes to skin
mycosis fungoides
3 stages of mycosis fungoides
pre-mycotic - inflammation
plaque
tumor
cerebriform tumor cells
mycosis fungoides sezary cells
exfoliative erythroderma
sezary syndrome
mycosis fungoides
sezary syndrome
skin involvment of mycosis fungoides with exfoliative erythroderma
sezary cells - cerebriform nuclei
STAT3 mutation
large granular lymphocytic leukemia
large granular lymphocytic leukemia
NK/T cell
large lymphocytes - blue cytoplasm and azurophilic granules
neutropenia/anemia**
felty syndrome
rheumatoid arthritis
splenomegaly
neutropenia
with large granular lymphocytic leukemia
T cell LGLL
indolent
NK cell LGLL
aggressive
nasopharyngeal mass
extranodal NK/T cell lymphoma
large azurophilic granules
extranodal NK/T cell lymphoma
EBV association
aggressive prognosis
extranodal NK/ T cell lymphoma prognosis
no chem response
responds to radiation**
hodgkins demo
32yo average age
- young adults/adolescents
- also older adults
curable - most cases
reed sternberg cells
giant B cell - in hodgkins lymphoma
release cytokines, chemokines and other factors that induce accumulation of reactive lymphocytes, macros, and granulocytes
aneuploid
hodgkins lymphoma
single node then spread in contiguous fashion
-can be staged
epigenetic changes
reed sternberg cells in hodgkins
owl eye nuclei
reed sternberg cells
variants of RS cells
mononuclear
lacunar - folded nucleus, multilobated
lymphohistiocytic - polyploid nuclei
types of hodgkins
1 nodular sclerosis 2 mixed cellularity 3 lymphocyte rich 4 lymphocyte depletion 5 lymphocyte predominance
first 4 - CD15, CD3
5 - CD20
1, 5 - no EBV
nodular sclerosis
type 1 hodgkins
- good prognosis
- CD15, CD30
- no EBV
- lower cervical, supraclavicular nodes
mixed cellularity
type 2 hodgkins
- EBV associated
- CD15, CD30
- males, night sweats, weight loss
- good prognosis
lymphocyte-rich
type 3 hodgkins
- EBV associated
- CD15, C30
- excellent prognosis
lymphocyte depletion
type 4 hodgkins
- EBV associated
- CD15, CD30
- elderly, HIV, non-industrialized
- worse prognosis than first 3
lymphocyte predominance
type 5 hodgkins
- no EBV association
- CD20/BCL6
- lymphohistiocytic cells
- popcorn cells
may transform to DLBCL
first 4 hodgkins types
classic**
hodgkin vs. NHL
hodgkin - single group of nodes
- orderly spread
- extranodal presentation - rare
- no waldeyer or mesenteric node involvement
helminths
Th2
intracellular pathogen
Th1
extracellular pathogen/fungi
Th17