syndromic disease trisomy X https://rarediseases.info.nih.gov/diseases/5672/47-xxx-syndrome https://www.malacards.org/card/trisomy_x MESH:C535318 GARD:0005672 triple-X female 47 XXX syndrome NORD:1798 XXX syndrome SCTID:35111009 MONDO:0018066 triple-X chromosome syndrome NCIT:C129718 trisomy type X 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). 47,XXX MEDGEN:113140 Triplo-X syndrome Triplo X syndrome UMLS:C0221033 triple X syndrome Orphanet:3375 trisomy X 47,XXX syndrome icd11.foundation:423644907 inherited primary ovarian failure chromosome X disorder trisomy