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osteoid osteoma
Epidemiology:
1) generally occurs between ages 5-30 years
2) male:female ratio 1:1
Pathology:
- benign bone tumor
- bone cortical proliferation without cortical destruction [2]
Clinical manifestations:
1) bone pain at night relieved by NSAIDs
2) pain is generally of gradual onset, progressively worsening
3) pain may be present for years
Radiology:
1) diagnosis generally made from plain radiograph
a) small nidus, generally < 1 cm
b) radiolucent to radiopaque, depending upon age of tumor
c) radiolucent ring around nidus
d) adjacent bone sclerosis
2) bone scan sometimes need to located tumor
3) computed tomography may better visualize tumor
Management:
1) NSAIDs to relieve pain
2) surgical excision is curative
General
osteogenic neoplasm
Database Correlations
OMIM 259550
References
- Mayo Internal Medicine Board Review, 1998-99, Prakash UBS (ed)
Lippincott-Raven, Philadelphia, 1998, pg 866
- NEJM Knowledge+ Question of the Week. Jan 8, 2018
https://knowledgeplus.nejm.org/question-of-week/4923/