Button sequestrum

A button sequestrum is a small sequestrum of devascularised bone surrounded by lucency. Although classically described in osteomyelitis and eosinophilic granuloma it is also occasionally seen in fibrosarcoma and lymphoma.

Differential diagnoses

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rID: 7665
System: Musculoskeletal
Section: Signs
Synonyms or Alternate Spellings:

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