LD50.1 Karyotype 47,XXX

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

Trisomy X is a sex chromosome anomaly with a variable phenotype caused by the presence of an extra X chromosome in females (47,XXX instead of 46,XX). Most individuals are only mildly affected or asymptomatic, the most common physical features including tall stature, epicanthal folds, hypotonia and clinodactyly, with seizures, renal and genitourinary abnormalities, and premature ovarian failure being also associated findings.

synonyms

• Karyotype 47,XXX
• triple X female
• trisomy x syndrome
• xxx syndrome
• female triple x syndrome
• triple x syndrome
• triple x

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