Haem - lymphoma Flashcards
Why are there so many diff subtypes of lymphoma
can arise from cells at many diff stages of lymphoid maturation
Why are lymphocytes prone to lymphoma -give 3 reasons
1) Rapid proliferation in infection
2) VDJ recombination
3) Highly dependent on apoptotic process (so if this goes wrong…there is prolif of abnormal cells)
eg of oncogenes in lymphoma
c-myc, cyclin D1, bcl2, bcl6
Diff in présentation of CLL and lymphoma?
- CLL = symmetrical
- Lymphoma = asymmetrical painless lymphadenopathy
Risk factors for lymphoma
- Ag stimulation: H. Pylori/Coeliac disease
- Viral: HTLV1/EBV
Hodgkin’s lymphoma - where do the cells tend to arise from
Germinal centre
Smear cells
CLL
Presentation of hodgkin’s lymphoma
Asymmetrical, painless lymphadenopathy
B - Sx: Drenching night sweats/fever/10% wt loss in 6 months
B symptoms of Hodgkin’s lymphoma
- Drenching night sweats
- Fever
- 10% wt loss in 6 months
Most common subtype of Hodgkin’s lymphoma
Nodular sclerosing
Staging of Hodgkin’s lymphoma
1: one group of LNs
2: more than 1 group of LNs on 1 side of diaphragm
3: both sides of diaphragm involved
4: extra nodal sites
What is stained for in ?Hodgkin’s lymphoma
CD15 and CD30
2 useful investigations for stagin Hodgkins?
CT/PET
Lymph node biopsy
Treatment of Hodgkin’s lymphoma
COMBINATION CHEMOTHERAPY FOR ALL
Adriamycin, Bleomycin, Vinblastin, Dacarbazine
+/-radiotherapy
Common dilemma in the management of hodgkin’s lymphoma?
Do we use radiotherapy?
Radiotherapy would cure the lymphoma, but increases risk of malignancy later in life