Pathophys II- Lymphoid disease Flashcards
Infectious mononucleosis is caused by
EBV
What cells are affected by Infectious mononucleosis
B cells
ALL peak at age
2-5 years
Second increase incident of ALL is after age
50
B-ALL markers
CD10
CD19
CD22
CD79a
T-ALL markers
CD3
CD7
B-ALL cytogenic subtypes
t(12;21)
t(9;22)
B-ALL represent __ of ALL
80%
Very poor prognosis with which abnormality?
t(9;22)
Prognosis for CLL?
Good
Tumor cell appear to be __ in CLL
Mature B cell
What is the most common cytogenic abnormality in CLL
Deletion of 13q14
Diagnosis of CLL (blood)
Peripheral blood lymphocyte count > 5 G/L
Diagnosis of CLL (Bone marrow)
Bone marrow aspiration showing > 30% lymphocytes
Composition of normal bone marrow
Granulocyte 60%
Erytrocyte 20%
Lymphocyte 10%
CLL peripheral blood smear will show
Lymphocyte with thin cytoplasm
Smudge cells
Staging system for CLL
Rai
Binet
CLL treatment
Incurable
OK but what can we do?
Anti-CD20 = RItuximab
Rai staging
0-IV
Binet staging
A
B
C
EBV will show ___ on histology
Atypical lymphocytes
Downey types
EBV symptoms
Rash Fever Lymphadenopathy White coating on tonsils Splenomegaly
EBV causes
Infectious mononucleosis