Trisomy 9: Difference between revisions
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Revision as of 14:58, 24 June 2010
| Trisomy 9 | |
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| Chromosome 9 | |
| ICD-10 | Q92 |
| ICD-9 | 758 |
| DiseasesDB | 32657 |
| MeSH | D014314 |
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Ongoing Trials on Trisomy 9 at Clinical Trials.gov Clinical Trials on Trisomy 9 at Google
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US National Guidelines Clearinghouse on Trisomy 9
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Patient resources on Trisomy 9 Discussion groups on Trisomy 9 Directions to Hospitals Treating Trisomy 9 Risk calculators and risk factors for Trisomy 9
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Causes & Risk Factors for Trisomy 9 |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Trisomy 9 is a chromosomal disorder caused by having three copies (trisomy) of chromosome number 9. It can appear with or without mosaicism.
Symptoms
Symptoms vary, but usually result in dysmorphisms in the skull, nervous system, and mental retardation. Dysmorphisms in the heart, kidneys, and musculoskeletal system may also occur.
Detection
Trisomy 9 can be detected prenatally with chorionic villus sampling and cordocentesis, and can be suggested by obstetric ultrasonography.
Because trisomy 9 may appear with mosaicism, it is suggested that doctors take samples from multiple tissues when karyotyping for diagnosis.[1]
References
- ↑ Stipoljev F, Kos M, Kos M, Miskovi B, Matijevic R, Hafner T, Kurjak A (2003). "Antenatal detection of mosaic trisomy 9 by ultrasound: a case report and literature review". J Matern Fetal Neonatal Med. 14 (1): 65–9. PMID 14563095.
External links
- NORD - National Organization for Rare Disorders, Inc. Chromosome 9, Trisomy 9p (Multiple Variants)
- NORD - National Organization for Rare Disorders, Inc. Chromosome 9, Trisomy Mosaic