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Mosaic trisomy 16 is a rare chromosomal anomaly syndrome with a highly variable phenotype ranging from minor anomalies with normal development to intrauterine growth retardation, abnormal skin pigmentation, craniofacial and body asymmetry, cardiac (e.g. ventricular septal defect) and genital (e.g. hypospadias, cryptorchidism) anomalies, scoliosis and hearing loss to neonatal death. Additional features observed include skeletal malformations (e.g. clino/polydactyly, talipes), mild facial dysmorphism, and developmental delay.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for mosaic trisomy 16.
9 publications have been identified in PubMed for mosaic trisomy 16. Research spans Case Report / Case Series (75%), Basic Science / Preclinical (13%), and Epidemiology / Natural History (13%).
Panchenko E (2025). [PMID: 40943441](https://pubmed.ncbi.nlm.nih.gov/40943441/). *Int J Mol Sci*. [Case Report / Case Series]
Mukamel EA (2025). [PMID: 40907475](https://pubmed.ncbi.nlm.nih.gov/40907475/). *Neuron*. [Basic Science / Preclinical]
Xia C (2025). [PMID: 40075865](https://pubmed.ncbi.nlm.nih.gov/40075865/). *Diagnostics (Basel)*. [Case Report / Case Series]
Lou S (2025). [PMID: 39856011](https://pubmed.ncbi.nlm.nih.gov/39856011/). *Prenat Diagn*. [Epidemiology / Natural History]
Tamaru H (2025). [PMID: 41317128](https://pubmed.ncbi.nlm.nih.gov/41317128/). *Congenit Anom (Kyoto)*. [Case Report / Case Series]
Murry JB (2025). [PMID: 40725393](https://pubmed.ncbi.nlm.nih.gov/40725393/). *Genes (Basel)*. [Case Report / Case Series]
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 3:00 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Wang Y (2025). [PMID: 40084842](https://pubmed.ncbi.nlm.nih.gov/40084842/). *Mol Genet Genomic Med*. [Case Report / Case Series]
Naeem F (2024). [PMID: 39509627](https://pubmed.ncbi.nlm.nih.gov/39509627/). *WMJ*. [Case Report / Case Series]