enostosis
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Names- enostosis = medullary cavity
- osteoma = surface of bone
Clinical- site: membranous bones (calvarial, facial, jaw), rarely outisde the skull
- intramedullary lesions: long bone (epiphysis, metaphysis), pelvic bones, vertebral bodies
- size: < 2 cm
Histology- lamellar bone
- lacks marrow
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