part of part of has part has part characteristic of inheres in has modifier Abnormality of the epiphysis of the proximal phalanx of the thumb Stippling of the epiphysis of the proximal phalanx of the thumb 2009-01-30T09:17:13Z UMLS:C4024244 Speckled calcifications in end part of thumb innermost long bone The presence of abnormal punctate (speckled, dot-like) calcifications in the epiphysis of the proximal phalanx of the thumb. In contrast to the proximal phalanges of the digits 2-5, the proximal phalanx of the thumb is embryologically equivalent to the middle phalanges of the other digits, whereas the first metacarpal is embryologically of phalangeal origin and as such equivalent to the proximal phalanges of the other digits. HP:0009673 Stippling of thumb epiphysis Stippling of the epiphyses of the middle phalanges of the hand abnormal punctate proximal phalanx of manual digit 1 epiphysis of phalanx of manus