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MSK SOH > Bone tumours > Flashcards

Bone tumours Flashcards

1
Q

What is the most common benign bone tumour

A

Osteochondroma

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2
Q

Osteochondroma - pathology

A

Bony outgrowth

Covered by cartilaginous cap

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3
Q

Osteochondrma - location

A

Around epiphysis of long bones

eg Knee

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4
Q

All osteochondromas remain completely benign. True or false?

A

False

- small malignant potential

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5
Q

Enchondroma - location

A

Intramedullary
Metaphyseal
Hands and feet

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6
Q

Enchondroma - pathology

A

Lucent (glowing) but has patchy sclerotic appearance

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7
Q

Enchondroma is usually asymptomatic. True or false?

A

True

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8
Q

Simple bone cyst - cause

A

Growth defect

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9
Q

Simple bone cyst - pathology

A

Single cavity of benign fluid filled cyst

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10
Q

Simple bone cyst - location

A

Long bones

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11
Q

Giant cell tumour - X-ray appearance

A

Soap bubble

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12
Q

Fibrous dysplasia - who gets it

A

adolescents

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13
Q

Fibrous dysplasia - location

A

Head and neck

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14
Q

Osteoid osteoma - pathology

A

Halo appearance

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15
Q

Osteoid osteoma - clinical features

A

Intense constant pain

Worst at night

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16
Q

Osteoid osteoma - management

A

NSAIDs

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17
Q

Common sites of bony metastasis?

A 
Breast 
Prostate 
Lung
Renal 
Thyroid
18
Q

Malignant primary bone tumours are more common in younger/older age groups?

19
Q

What is the most common malignant bone tumour?

A

Osteosarcoma

20
Q

Osteosarcoma is more common in old people. True or false?

A

False

- young people

21
Q

Osteosarcoma - location

A

Around the knee

22
Q

Osteosarcoma - definition

A

Malignant tumour which produces bone

23
Q

Osteosarcoma - genetics

24
Q

Osteosarcoma is untreatable. true or false?

25
Q

Chondrosarcoma - location

26
Q

Chondrosarcoma - age

27
Q

Chondrosarcoma has fast metastatic potential?

A

False

- slow metastatic potential

28
Q

Chondrosarcoma is untreatable. True or false?

29
Q

Ewings sarcoma - who gets it

A

Adolescents

30
Q

Ewings sarcoma - location

A

Long bones

31
Q

Which malignant bone tumour has an onion skin appearance?

A

Ewings sarcoma

32
Q

Ewings sarcoma - genetics

A

chromosome 22

33
Q

Ewings sarcoma can commonly be confused with osteomyelitis. Why?

A

Raised inflammatory markers

34
Q

Ewings sarcoma - biopsy appearance

A

Small round blue tumours

- due to high N:C ratio

35
Q

What is different about prostate metastasis ?

A

Sclerotic metastasis

36
Q

Rhabdomyoma

A

Tumour of skeletal muscle

37
Q

Leiomyoma

A

Smooth muscle tumour

38
Q

Schwannoma

A

Tumour of nerves

39
Q

Haemangioma

A

Tumour of blood vessels

40
Q

Where does angiolipoma usually occur?

41
Q

Angiolipoma is painful/painless

42
Q

Which tumour is most common to occur as a complication of previous radiotherapy?

A

Angiosarcoma

MSK SOH (24 decks)

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