Presentation
Trauma.
Patient Data
Age: 30 years
Gender: Male
From the case:
Phalangeal exostosis
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Well-defined bony outgrowth arising from the radial aspect of the proximal phalanx of the index finger. The direction of growth is towards the adjacent joint (in this case, the proximal interphalangeal joint), which is unusual for an osteochondroma.
No acute fracture identified.