Malignant Haematology Flashcards

1
Q

What is malignancy haemopoeisis?

A

Increased numbers of abnormal and dysfunctional cells

Loss of normal activity

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2
Q

What can malignant haemopoiesis affect?

A

Haemopoeisis

Immune function

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3
Q

What can cause malignancy haemopoiesis?

A

Increased proliferation
Lack of differentiation
Lack of maturation
Lack of apoptosis

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4
Q

What occurs in acute leukamia?

A

Proliferation of abnormal progenitors with block in differentiation/maturation

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5
Q

What occurs in chronic myeloproliferative disorders?

A

Proliferation of abnormal progenitors but no differentiation block

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6
Q

What causes haematological malignancies?

A

Genetic
Environmental
Mutations

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7
Q

What are clones?

A

Population of cells derivedd from a single parent cell

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8
Q

Is normal haemopoeisis polyclonal or monoclonal?

A

Polyclonal

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9
Q

Is malignant haemopoiesis monoclonal or polyclonal?

A

Monoclonal

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10
Q

What mutations confer growth advantage?

A

Driver mutations

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11
Q

What are the 3 types of haematological malignancies?

A

Based on lineage
Based on developmental stage
Based on anatomical site

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12
Q

What are the 2 different lineages of haem malignancies?

A

Myeloid

Lymphoid

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13
Q

What are the types of haem malignanciesbased on developmental stage?

A

Lymphoblastic
Lymphocytic
Myeloma

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14
Q

What is a Haem malignancy involving blood?

A

Leukaemia

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15
Q

What is a haem malignancy that involved lymph nodes with lymphoid malignancy?

A

Lymphoma

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16
Q

What is myeloma?

A

Plasma cell malignancy in marrow

17
Q

What haem malignancy can involve blood and lymph nodes?

A

Chronic lymphocytic leukaemia

18
Q

What is more aggressive: Chronic/Low grade or Acute/High grade?

A

Acute/High grade

19
Q

What are features of histological aggression?

A

Large cells with high N:C ratio
Prominent nucleoli
Rapid proliferation

20
Q

What are features of clinical aggression?

A

Rapid progression of symptoms

21
Q

What do acute leukaemias present with?

A

Failure of normal bone marrow function

22
Q

What is acute leukaemia?

A

Rapidly progressive clonal malignancy of the marrow/blood with maturtion defects
>20% of blasts in peripheral blood
Loss of normal haemopoietic reserve

23
Q

What are 2 types of acute leukaemia?

A

Acute myeloid leukaemia (AML)

Acute lymphoblastic leukaemia (ALL)

24
Q

What is Acute lymphoblastic leukaemia?

A

Malignant disease of primitive lymphoid cells

25
what is the most common childhood cancer?
Acute lymphoblastic leukaemia
26
What is the clinical presentation of ALL?
Anaemia Infections Bleeding Bone pain
27
What age group is likely to get acute myeloid leukaemia?
>60Years
28
What investigations for acute leukaemia?
``` Blood count and film Coagulation screen Bone marrow aspirate Morphology Immunophenotype ```
29
What is seen on blood film in acute leukaemia?
Reduction in normal Presence of abnormal cells (Blasts) with high N:C ratio Auer rod
30
What is required for a definitive diagnoses between AML and ALL?
Immunophenotyping
31
How is acute leukaemia treated?
Multi-agent chemotherapy
32
How is ALL treated?
Can last up to 3 years | Different phases
33
How is AML treated?
2-4 cycles of chemotherapy | Prolonged hospitalisation
34
What are problems of marrow suppression?
Anemia Neutropenia Infections Thrombocytopenia
35
What bacteria affect marrow suppressed patients?
Gram -VE bacteria
36
What are the complications of chemotherapy?
``` Nausea and Vomiting Hair Loss Liver Renal dysfunction Tumour lysis syndrome Infections ```
37
What is the treatment for bacterial infectionas soon as neutropenic fever?
Broad spectrum antibiotics
38
What is remission?
<5% marrow blasts with recovery of normal haemopoieses
39
What will some patients die of?
Treatment-related toxicity