Haematology 2 Flashcards
What is lymphoma?
Malignancy of lymphatic system
Who does Hodgkin lymphoma commonly affect?
Young adults
When does non-Hodgkin lymphoma typically present?
> 50 years
What is immune thrombocytopenic purpura?
Autoimmune destruction of platelets
What is the epidemiology of ITP?
More common than ITP
Acute/primary - children following infection
Chronic/secondary - young women
How does ITP present?
Purpura Epistaxis Easy bruising Menorrhagia Gum bleeding
What is the first line investigation for ITP?
FBC (thrombocytopoenia)
How do you manage ITP?
IV corticosteroids
IV immunoglobulin
Splenectomy
What is thrombotic thrombocytopenic purpura (TTP)?
Platelet deficiency due to ADAMTS13 deficiency
What causes TTP?
Congenital or acquired
Postpartum or during pregnancy 10-25%
70% idiopathic
RF: HIV, autoimmunity, cancer, pregnancy
How does TTP present?
Flu like symptoms Purpura Easy bruising and bleeding Abdo/chest pain Arrhythmias
How do you investigate TTP?
First line - FBC (thrombocytopenia)
Gold standard: low ADAMTS13, high ADAMTS13 antibodies
How do you manage TTP?
Emergency Plasma exchange to remove antibodies FFP IV methylprednisolone Immunosuppression Splenectomy
What is disseminated intravascular coagulation (DIC)?
Systemic activation of coagulation system
What are the risk factors for DIC?
Sepsis (30-50% of patients) Malignancy (leukaemia) Major trauma - crush/burn Pregnancy complications Rejection of transplant/transfusion Liver/pancreatic disease Post op complications Recreational drugs
How does DIC present?
Bleeding & thrombosis out of control ARDS Bruising Bleeding from at least 3 unrelated sites Confusion Fever Infarction/necrosis/gangrene
How do you investigate DIC?
Repeat platelet count (low and decreasing)
Elevated D dimer
Prolonged PT/aPTT
Low fibrinogen
How do you manage DIC?
Transfusion of FFP/platelets
Heparin if thrombosis dominant (if not bleeding)
Tranexamic acid (TXA) if bleeding dominant
Treat underlying condition
What is DVT?
Venous thrombus in deep vein (leg/pelvis)
What are the risk factors for DVT?
Hx DVT 60+ Surgery Obesity Long haul flights Cancer Fracture (immobility) Pregnancy HRT/COC
How does DVT present?
Discolouration Pitting oedema Tenderness along deep veins Increased skin temperature Palpable cord Pain (in leg)
How do you investigate DVT?
Raised D-dimer
US duplex
How do you manage DVT?
Heparin 5 days
DOAC/warfarin 6 months
IVC filter
What is DVT prophylaxis?
Compression stockings
LMWH
How do you treat myeloma in young patients?
Chemo and autologous stem cell transplant
Why is myeloma monitored after treatment?
Monitoring every 3 months for smoldering myeloma
What are the risk factors for Hodgkin lymphoma?
Previous EBV
What cells are affected in Hodgkin lymphoma?
T/B cells
How does Hodgkin lymphoma present?
Painless lymph node enlargement (pain after drinking)
Hepatosplenomegaly
B symptoms
What are ‘B symptoms’?
Fever
Night sweats
Weight loss
How do you investigate Hodgkin lymphoma?
Lymph node biopsy
What is seen on biopsy for Hodgkin lymphoma?
Reed Sternberg cells
How is lymphoma staged?
Ann Arbour staging
What is the Ann Arbour staging system?
Stage 1 -> the disease is in one area only
Stage 2 - the disease is in 2 or more areas on the same side of the diaphragm
Stage 3 -> the disease is in 2 or more areas on both sides of the diaphragm
Stage 4 - the disease has spread beyond the lymph nodes
How is Hodgkin lymphoma treated?
1A-2A = brief ABVD chemotherapy 2A-4B = 8 cycles of ABVD and irradiation
What is the most common childhood cancer?
Acute lymphoid leukaemia
How is acute lymphoid leukaemia diagnosed?
Blast cells in blood film
How is acute lymphoid leukaemia treated?
Chemo, stem cell transplant
80-90% cure rate
What are the key clinical features of nephrotic syndrome?
Proteinuria ++++++ Hypoalbuminaemia Oedema +++ GFR ↓/↔ Hyperlipidaemia
What does FBC show for sickle cell anaemia?
Low Hb, high reticulocytes
What does blood film show for sickle cell anaemia?
Sickled RBCs
What does Hb electrophoresis show for sickle cell anaemia?
HbS present, no HbA
What are the risk factors for non-Hodgkin lymphoma?
EBV, hep C, HIV, H pylori, ionising radiation, genetics, autoimmune disease
What cells does non-Hodgkin lymphoma affects?
B cells
How does indolent non-Hodgkin lymphoma present?
Slow, presents advanced, incurable
How does aggressive non-Hodgkin lymphoma present?
Severe but curable
How does non-Hodgkin lymphoma present?
Painless lymphadenopathy
Hepatosplenomegaly
B symptoms
Extra nodal involvement
How do you investigate non-Hodgkin lymphoma?
Lymph node biopsy, BM aspirate
How do you treat low grade non-Hodgkin lymphoma?
Watch and wait, monoclonal antibodies, chemo
How do you treat high grade non-Hodgkin lymphoma?
RCHOP chemo
How do you slow the progression of CKD?
DM treatment
HTN treatment
Glomerulonephritis treatment
How do thiazide diuretics prevent urolithiasis?
Helps with recurrent stones by reducing calcium levels
Describe the course of chronic lymphocytic leukaemia.
Indolent/slow course
How does chronic lymphocytic leukaemia present?
Enlarged lymph nodes & frequent infection
How do you investigate chronic lymphocytic leukaemia?
Smudge cells on blood film
How do you treat chronic lymphocytic leukaemia?
Incurable - chemo +/- stem cell transplant if young
What are the gold standard investigations for ITP?
Blood smear (thrombocytopoenia) Platelet autoantibodies Increased megakaryocytes in BM