has part has part characteristic of part of has modifier Abnormal morphology of the proximal phalanx of the hallux In contrast to the proximal phalanges of the digits 2-5, the proximal phalanx of the big toe is embryologically equivalent to the middle phalanges of the other digits, whereas the first metatarsal is embryologically of phalangeal origin and as such equivalent to the proximal phalanges of the other digits. Abnormal hallux phalanx morphology Abnormality of the middle phalanges of the toes Abnormality of toe proximal phalanx quality abnormal proximal phalanx of pedal digit 1