Malignancy Flashcards

1
Q

What are the features of acute lymphoblastic leukaemia?

A

All happens via BONE MARROW FAILURE :

Anaemia
Neutropenia (fx infec)
Thrombocytopenia

Also other:
lymphadenopathy, bone pain, splenomegaly, hepatomegaly, fever

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2
Q

What cell will be high in acute lymphoblastic leukaemia?

A

raised lymphocytes

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3
Q

Definitive diagnosis for ALL?

A

Bone marrow aspiration and biopsy

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4
Q

Poor prognostic factors for ALL?

A

Age <2 and >10

WBC >20 x10^9 / L

T or B cell surface markers

non-caucasian

Male sex

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5
Q

What is a sarcoma?

A

Cancers originating in the muscles, bones or other types of connective tissue

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6
Q

What are the types of bone sarcomas?

3

A

Osteosarcoma

Chondrosarcoma

Ewing sarcoma

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7
Q

Tell me about osteosarcoma?

A

Most common form of bone cancer

Persistent pain worse at night time, described as dull and unremmiting

Most common in tibia

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8
Q

What is the most common bone cancer?

A

Osteosarcoma

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9
Q

what bones are most affected by osteosarcoma?

A

Femur and tibia

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10
Q

What bone cancer is very rare in children?

A

Chrondrosarcoma

  • cancer originating from cartilage
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11
Q

What is ewing sarcoma?

A

Form of bone and soft tissue cancer most affecting children and young adults

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12
Q

What is seen on x ray for ewing sarcoma?

A

Onion skin apperance of x-ray

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13
Q

What presentation would make you want to explore bone cancer in children?

A

Unexplaiend bone swelling and persistent pain in children

48 hour referral for X-ray to assess for sarcoma

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14
Q

Investigations for bone cancers in children?

A

X-ray initially

Biopsy for histology and diagnosis

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15
Q

What is a common ocular malignancy in children?

A

Retinoblastoma

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16
Q

What is the genetic background of retinoblastoma

A

Autosomal dominant

Mutations in RB1 gene on chromosome 13

17
Q

Features of retinoblastoma

A

Abscence of red-reflex (replaced by white pupil leukocoria)

+ squinting

18
Q

What is the most common presenting symptom for retinoblastoma?

A

White pupil leukocoria

19
Q

Management of retinoblastoma?

A

Enucleation - removal of eye due to cancer spread risk

Chemotherapy if early or less aggressive

20
Q

What would indicate that retinoblastoma is so severe it requires enucleation

A

Anterior chamber involvement

glaucoma

intra-orbital inflammation

21
Q

Prognosis of retinoblastoma

A
  • Excellent prognosis, >90% survive into adulthood.
    • Survivors require lifelong monitoring due to the risk of developing non-ocular secondary malignancies, such as malignant melanoma, sarcoma, brain tumours, leukaemia, and osteosarcoma
22
Q

What is neuroblastoma?

A

Tumour arising from neural crest tissue of the adrenal medulla and sympathetic nervous system.

23
Q

Symptoms of neuroblastoma

A

abdominal mass, pallor, weight loss, bone pain, limp, hepatomegaly, proptosis.

24
Q

Investigation for neuroblastoma

A

Raised urinary catecholamine metabolites

VMA and HVA

25
Q

What would require nephrectomy and chemotherapy?

A

Nephroblastoma