Turner syndrome

(redirected from Karyotype 45,X)
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Tur·ner syndrome

 (tûr′nər) also Tur·ner's syndrome (-nərz)
n.
A congenital condition of girls and women caused by complete or partial absence or deficiency of one X chromosome, characterized by short stature, a webbed neck, low-set ears, skeletal abnormalities, and infertility owing to ovarian failure.

[After Henry Hubert Turner (1892-1970), American endocrinologist.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Karyotype 45,X has been reported in between 32-74% patients, while 9.2-31% patients are carriers of different variants of chromosome X structural abnormalities and a mosaic karyotype is present in between 9-56.3% of patients (12,13,14,15,16,17,18,19).
These manifestations of TS were most frequent in patients with karyotype 45,X and significantly less frequent in patients with 45,X/46,XX (p=0.023) and structural abnormalities of chromosome X (p=0.035).
The first described cases were with the 'classical' karyotype 45,X. In more recent series the classical karyotype only accounts for 50% of cases; the remaining cases comprise mosaic karyotypes (i.e.