Pathological fracture due to aneurysmal bone cyst

Case contributed by Bálint Botz
Diagnosis certain

Presentation

Known ABC of the right third metacarpal, previously operated with local recurrence. Sport injury.

Patient Data

Age: 13 years
Gender: Female

About 30 mm expansile lytic area in the third metacarpal with cortical thinning and narrow zone of transition. Pathological, minimally displaced transverse fracture novel compared to prior radiograph. 

Case Discussion

Pathological metacarpal fracture sustained after inadequate trauma due to persistent aneurysmal bone cyst

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