has part has part characteristic of part of inheres in part of has modifier Abnormal morphology of the proximal phalanx of the hallux 2009-05-29T11:47:46Z HP:0010052 Abnormal innermost big toe bone UMLS:C4024084 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. Abnormality of the proximal phalanx of the hallux An abnormal shape or form of the proximal phalanx of the big toe. Abnormal hallux phalanx morphology Abnormality of the middle phalanges of the toes quality abnormal proximal phalanx of pedal digit 1