Haematology Flashcards
Heinz bodies, bite and blister cells on film = ?
G6PD deficiency
Howell-Jolly bodies = ?
Post splenectomy
Smear/parachute/smudge cells on film = ?
CLL
Cerebriform cells on film = ?
Peripheral T cell lymphoma
Granular lymphocytes on film = ?
Large granular lymphocytic leukaemia
Tear drop red cells on film = ?
Myelofibrosis
Reed-Sternberg cells = ?
Hodgkin’s lymphoma
Starry sky on bone marrow biopsy = ?
Burkitt’s lymphoma
Dutcher bodies and flaming cells on bone marrow biopsy = ?
Myeloma
Normal T cell surface markers?
CD3/4/5/8
Normal B cell surface markers?
CD 19/20/kappa/lambda
Normal stem cell surface markers?
CD34
Normal monocyte cell surface markers?
CD14, CD64
Normal granulocytes cell surface markers?
CD13/15/33
Normal plasma cell surface markers?
CD138
Definition of MGUS?
Paraprotein < 30g/l, clonal plasma cells in BM < 10%, no myeloma defining events
RIsk factors for MGUS progression?
Paraprotein > 15g/L, non-IgG, FLC < 0.26 or > 1.65
Smoulder myeloma definition?
Paraprotein > 30g/L or > 0.5g/d in urine, BM plasma cells 10-60%, no myeloma defining events
Myeloma definition
Bone marrow plasma cells > 10% OR biopsy proven plasmacytoma + any CRAB features
OR if BM plasma cells > 60%, FLC ratio > 100, or 2 or more lesions > 5mm on MRI
Prognostic markers for myeloma (staging)?
Albumin < 35, B2-microglobulin > 5.5, LDH
Most common cause of renal failure in myeloma?
Cast nephropathy
Most common glomerular cause of renal failure in myeloma?
Amyloidosis
Treatment for myeloma if young and fit?
Bortezomib/len/dex triplets
Melphalan + autoSCT
Len maintenance
Treatment for myeloma if not fit for transplant
Bortez/len/dex trip/doublets
Other options - carfilzomib, pom, daratumumab
Side effects of proteasome inhibitors?
Bortezomib - neuropathy
Carfilzomib - cardiac
Side effects of immunomodulators?
Thalidomide - neuropathy
Lenalidomide - cytopaenia
Pom - cytopaenia
Mechanism of action of daratumumab?
anti-CD38
Common indications for autologous transplant?
Myeloma, lymphoma (mantle, T-cell, HL, NHL)
Diagnostic test for hereditary spherocytosis?
Flow cytometry showing reduced binding eosin-5 maleimide
Pathophysiology of myelofibrosis
Clonal proliferation of megakaryocytes, leading to fibroblast proliferation
Leukoerythroblastic blood film = ?
Myelofibrosis with nucleated and tear drop red cells
Bone marrow biopsy in MF?
Dry tap
Treatment of myelofibrosis
Ruxolitinib
What causes PNH?
Mutation in PIGA gene, leads to defective glycoprotein anchors for CD55/59, therefore uncontrolled complement activation
Consequences of PNH?
IV haemolysis, pancytopaenia, thrombosis
Diagnosis of PNH?
Flow cytometry showing lack of CD59 on RBCs and CD16 on neutrophils, and FLAER (fluorescent aerolysin)
Treatment of PNH?
Eculizumab, alloSCT
Good prognostic mutations in AML?
t(8;21)
t(16;16)
inv16
Mutated NPM1 without FLT3-ITD or with FLT3-ITD low
Poor prognostic markers in AML?
FLT3-ITD-high, esp with wild type NPM1 Del5q Complex karyotype, monosomal karyotype t(6;9) t(9;22)
Standard induction therapy for AML?
7 days cytarabine, 3 days anthracycline
Specific treatment for FLT3 mutated AML
Midostaurin
APML mechanism of DIC?
Immature granulocytes express tissue factor and activate plasmin –> massive DIC
Prominent granulation and Auer rods on film = ?
APML
Diagnosis of APML?
PCR/FISH for PML-RAR protein, t(15;17)
Management of APML?
ATRA and arsenic
What types of leukaemia may be treated with imatinib?
CML, ALL (if Ph chromosome positive)
What is bilinatumumab?
Bispecific antibody CD3/19, brings T/B cells together
Treatment of MDS with del5q?
Lenalidomide
Management of high risk MDS?
Azacitadine, consider alloSCT
Management of low risk MDS?
Supportive