Module 2 Exam (With simple card editor) Flashcards
What disease does this blood film suggest?
-ALL-Could also possibly be AML M0-1
What disease does the following immunophenotype suggest? Sig+, CD5+, Cyclin D1+, CD20+, CD10-, CD23-, BCL6-, MUM1-
-Mantle cell lymphoma-(Aberrant CD5 and Cyclin D1 expression)
What disease does this blood film suggest?
CLL-Lymphocytosis-Smear cells
What is the treatment for APML?
ATRA and arsenic
What is the main genetic cause of Burkitt lymphoma?
-Lost regulation of c-myc
Outline clinical presentation of MDS
-Signs of bone marrow failure-fatigue, infections, easy bruising-Bone marrow hypercellular-Cytopenia (a dysplastic change of a particular lineage causes the cytopenia of that lineage, i.e anaemia in erythroid dysplasia)
What disease does the following immunophenotype suggest? CD45+, CD13+, CD33+, CD117+, CD34+, HLA-DR+, CD19-, Tdt-
-AML M0/M1/M2-CD34+, HLA-DR+, (Both markers of immaturity)
-What viruses can cause infectious mononucleosis?
EBV and CMV
What disease does this blood film show?
CML, in chronic phaseMyelocytes and basophils can be prewent
Outline the pathophysiology of CML
-Translocation occurs between chromosome 9 and 22, forming BCR-ABL1 fusion gene-BCR-ABL1 molecule is a constitutively active tyrosine kinase-Causes downstream activation of oncogenes, such as JAK, PI3K and RAS-Leading to increased proliferation, survival and clonal expansion of cells with the initial t(9;22) mutation.
Outline the clinical presentation of Adult T-cell laeukaemia/lymphoma (ATL)
-Human T-cell lymphotrophic virus 1 (HTLV-1)-Hypercalcaemia-Skin rash-Other things pertaining to ALL or NHL
How does Multiple myeloma lead to bone weakness?
-Multilpe myeloma (MM) cells overproduce RANK ligand-Osteoprotegerin (OPG) is downregulated (MM endocytosis)-Leads to activation of osteoclasts-MM cels produce Dkk-1 which inhibit osteoblasts-produces sclerostin, which inhibits osteoblasts-Imbalance of osteoblast/osteoclast activity leads to osteolytic lesions and bone weakness
Case: A 51 year old woman was admitted to hospital showing: Asthenia(weakness), anorexia, weight loss. No significant findings on physical examination. Haemoglobin 83, WBC 6.5, platelets: 245. ESR 138 (high). IgA 14.1(high). Creatine 290 (high). See serum protein electrophoresis. CD38+, CD56+. What is the most likely diagnosis?
Multiple myeloma
Outline the causes of Marginal zone lymphoma
-Hep C-H pylori-Autoimmune causes
What disease does the following immunophenotype suggest? CD30+, CD15+, CD79a-, SmIg-, CD45-, CD34-, Tdt-
Hodgkin lymphoma(CD30+, CD15+)
What disease oes this immunophenotype suggest?CD45-, no SCC, CD19-, CD33+, CD7-, CD13+
-AML M0-M1
What disease does this blood film suggest?
Multiple myeloma-Characteristic, pushed off to one side, extended cytoplasm
What are the viruses that can contribute to lymphoma?
EBV (Burkitt, Hodgkin)HHV8 (ATLL)Hep C (Marginal zone lymphoma)HIV (Hodgkin, High grade B-cell lymphoma)Hep B
What are the most common cytogenetic abnormalities associated with ALL?
-High hyperdiploidy (good prognosis)-t(12;21)/ETV6-RUNX1 (Childhood, Good prognosis)-t(9;22)/BCR-ABL1/Ph (older adults, bad prognosis)-11q23 rearrangements/KMT2A (infants, bad prognosis)-t(1;19)/TCF-PBX1-T-ALL: t(10;14)
What is the mechanism of action of Imatinib?
-Imatinib is a tyrosine kinase inhibitor-It binds to the ATP binding site of BCR-ABL1, preventing ATP from binding and donating it’s phosphate.-Therefore no activation of oncogenic proteins
What disease does this blood film suggest?
Mantle cell lymphoma-Characteristic morphology?
Outline the main subtypes of myelodysplastic syndrome
-Single lineage dysplasia-Erythroid dysplasia-Granulocytic dysplasia-Megakaryocytic dysplasia-Multiple lineage dysplasia-Adult-Childhood-Ring Sideroblasts (Single lineage erythroid dysplasia)-5q deletion-Excess blasts-Excess blasts type 1 (5-9% blasts)-Excess blasts type 2 (10-19% blasts)
What genes are involved in multiple myeloma?
-IGH gene can be fused with:-Cyclin D1-MMSET gene-Maf-All leading to overproduction of Ig? (I think lol)
Describe the myeloid maturation sequence
Myeloblast,Promyelocyte,Myelocyte,Metamyelocyte,Band,granulocyte (e.g Neutrophil)