Catalog
Triphalangeal thumb
Link to WHO Definition
Triphalangeal thumb – http://id.who.int/icd/entity/12402839
A condition caused by failure of the thumb to correctly develop during the antenatal period. This condition is characterised by a long, finger-like thumb with three phalanges instead of two. Isolated triphalangeal thumbs may be associated with genetic abnormality in the 7q36 region.