Attempted bifid distal phalanx of the thumb

Case contributed by Assoc Prof Craig Hacking

Presentation

FOOSH.

Patient Data

Age: 25 years
Gender: Male

No fracture or dislocation. Incidental well defined ovoid foramen with corticated margins in the center of the thumb distal phalanx represents attempted bifid morphology.

Case Discussion

Bifid phalanx represents a congenital abnormality where two separate phalanges develop in one digit. In this case, complete bifid development has not occurred and a small mid-phalangeal foramen remains.

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