0009662 Abnormality of the epiphysis of the distal phalanx of the thumb	0009692 Ivory epiphysis of the thumb	0010252 Ivory epiphyses of the distal phalanges of the hand
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0009681 Ivory epiphysis of the distal phalanx of the thumb

synonym

Increased bone density of end part of the outermost bone of the thumb