Haematological Malignancies - Hodgkins lymphoma Flashcards
What is Hodgkins lymphoma?
- A cancer of B cell lymphocytes, characterised by Hodgkin’s reed Sternberg cells (2 or more nuclei)
- malignant b cells lack typical b cell surface antigens
- able to evade apoptosis
What are the symptoms of HL?
Fever Weight loss night sweats pruritis alcohol induced pain mediastinal involvement palpable hepatosplenomegaly multiple nodules within organs inguinal/pelvic lymphadenopathy associated w oedema in lower limbs infiltration of lungs, bone marrow, skin and CNS
What is the pre-treatment evaluation for HL?
Blood evaluation
staging with CT scans of neck/pelvis
Assessment of prognosis
Fertility preservation
check cardiac function (bc of anthracycline)
check respiratory history (bc of bleomycin)
What haematological/biochemical markers are there in HL?
Mild anaemia
Leucocytosis with increased lymphocyte count
Raised ESR and CRP
Raised Serum lactate dehydrogenase (marker of disease activity)
LFTs = increased ALP and GGT
Lymphopenia (in advanced disease)
What are the prognostic factors for HL?
Age No. of lymph node sites involved Presence of mediastinal mass Increased ESR Extranodal disease raised lactate dehydrogenase
What is the treatment for HL in stages 1-2, early favourable disease?
Short course chemotherapy (2-3 cycles) and radiotherapy
What is the treatment for HL in early UNfavourable disease?
4 cycles of ABVD and radiotherapy
What is the treatment for HL in advanced disease (stages 3-4)?
full course chemo (6-8 cycles) with higher dose of regimens
Escalated BEACOPP/PVACEBOP/ABVD regimen
what is the ABVD regimen?
On days 1 and 15:
IV Doxorubicin 25mg/m2 (max 50mg) bolus injection via fats running drip NaCL 0.9%
IV Bleomycin 10,000 U/m2 infusion in 250ml NaCl 0.9% over 60 mins
IV Vinblastine 6mg/m2 (max 10mg) infusion in 50ml NaCl 0.9% over 10 mins
IV Dacarbazine 375mg/m2 infusion in 500ml NaCl 0/9% over at least 60 mins
repeat cycle every 28 days
what should be prescribed if no dexamethasone is used in the anti-emetic regime?
IV hydrocortisone before bleomycin
What is the standard BEACOPP regimen
Bleomycin Etoposide Adriamycin (Doxorubicin) Cyclophosphamide Vincristine Procarvazine Prednisone G-CSF
repeat every 21 days
What is the escalated BEACOPP regimen
Cycle repeated every 21 days with higher doses for up to 8 cycles
What is the BEACOPP-14 regimen?
cycle repeated every 14 days
What should be followed up after treatment?
Tx associated with long term complications:
- t cell defects
- secondary malignancies
- CVD
- pulmonary toxicity
- thyroid dysfunction
- compromised fertility
How do B cells evade apoptosis
- chromosomal translocations and genetic mutations
- incorporate epstein barr virus (EBV) or latent membrane proteins (LMP 1 AND 2)
- activation of TF-NFKB
- interaction with components of microenvironment