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Radiographs of patient 1: (a) left hand at 5 years, (b) left hand at 9 years. Note the abnormal distal phalange of the thumb that is missing the proximal ossification center. (c) Left foot at 5 years, (d) left foot at 9 years; the distal phalange of the great toe has a wide and rounded appearance and lacks the proximal epiphysis.
