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Syndrome reference sheet
Generated 13 Oct 2026
Genetics · Genetics / Chromosomal disorders

Trisomy 9 mosaic syndrome

Also known as: Mosaic trisomy 9

Mosaic trisomy 9 with growth retardation and heart defects.

Medical specialty
Genetics
Subspecialty
Genetics / Chromosomal disorders
Sex & age distribution
Male: affected; Female: affected; Children: yes
Gene(s) involved
None recorded

Etiology & mechanism

Mosaic extra chromosome 9.

Gene(s) involved (0)

No gene recorded.

Symptoms & signs (5)

developmental delaydysmorphismgrowth retardationheart defectsjoint contractures
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.