Turner syndrome: Spontaneous growth in 150 cases and review of the literature

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Abstract
The spontaneous growth of 150 patients with Turner syndrome from three German centers-90 with 45,X0 constitution, 60 with other chromosomal abnormalities-has been analyzed. The mean adult height was found to be (n=14) 146.8 cm. It was observed that growth in these patients can be divided into four phases: (1) Intrauterine growth, which is retarded; (2) Height development, which is normal up to abone-age of about 2 years; (3) Between a bone-age of 2 and 11 years when stunting of growth is most marked; (4) After a bone-age of 11 years—the time at which puberty should normally start—the growth phase is prolonged, but total height gain is only little below normal levels. No difference in height could be observed between cases with X0 karyotype and other chromosomal variants. The data are compared with those in the literature.