Trisomy 9
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| Trisomy 9 Classification and external resources | |
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| Chromosome 9 | |
| ICD-10 | Q92. |
| ICD-9 | 758 |
| DiseasesDB | 32657 |
| MeSH | D014314 |
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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
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
