Bone tumours Flashcards
1
Q
most common benign bone tumour?
A
Osteochondroma (outgrowth w/ cartilagenous cap)
2
Q
% chance of osteochondroma becoming malignant?
A
1%
3
Q
where is an enchondroma?
A
intramedullary (failure of enchondral ossification) - no outgrowth
4
Q
Describe an osteoid osteoma (benign)
A
immature bone surrounded by sclerotic halo
constant pain, worse at night (inflammation)
5
Q
What is a brodies abscess?
A
sub acute osteomyelitis (lytic lesion on xray)
6
Q
Most common malignant bone tumour?
A
Osteosarcoma
7
Q
Why do a lung xray with osteosarcoma?
A
10% have lung mets by time of diagnosis
8
Q
Ewings sarcoma signs
A
constant fever, warm swelling (poor prognosis)
