osteoid osteoma Flashcards
1
Q
what is it?
A
benign bone forming tumour
2
Q
where do they typically occur and in who?
A
long bones in children
3
Q
where are common sites?
A
proximal femur, diaphysis of long bones and vertebrae
4
Q
how does it clinically present?
A
intense constant pain, worse at night due to intense inflammatory response
5
Q
what are used to relieve pain?
A
NSAIDs
6
Q
what investigations are used?
A
x-ray, CT, bone scan
7
Q
what investigations confirm diagnosis?
A
bone scan and CT
8
Q
what is seen on bone scan?
A
intense local uptake
9
Q
what is seen on CT?
A
small nidus of immature bone surrounded by intense sclerotic halo
10
Q
what is seen on x-ray?
A
little o
11
Q
how are they managed?
A
may resolve spontaneously
some require CT guided radiofrequency ablation or en bloc excision
