A sequestrum is best described as:
Correct answer: D. A fragment of dead bone separated from living bone
- A. A blood clot lodged within a nutrient artery
- B. A cavity filled with newly formed cartilage
- C. A benign tumour arising from bone marrow
- D. A fragment of dead bone separated from living bone
Explanation
A sequestrum is devitalized bone that becomes separated from surrounding viable bone, commonly during chronic osteomyelitis. It may remain within an area of infection and can delay healing until removed or resorbed.
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Covers the causes and mechanisms of disease, cellular injury, inflammation, healing, circulatory disturbances, neoplasia and disorders of major organs. It also includes gross and microscopic pathological changes, specimen interpretation and the distinction between aetiology, pathogenesis, clinical signs and lesions.
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