Mosaic tetrasomy 21 in a male child
- 23 April 2008
- journal article
- case report
- Published by Wiley in Clinical Genetics
- Vol. 26 (2), 150-155
- https://doi.org/10.1111/j.1399-0004.1984.tb00805.x
Abstract
We report a three-year-old male child with dysmorphy, severe mental retardation and a mosaic tetrasomy 21 caused by an extra F-like chromosome composed of two long arms of chromosome 21. We have compared this unusual case with two other similar published case reports. Hypotheses to account for the origin of the abnormal chromosome and the mosaicism are presented and discussed.Keywords
This publication has 2 references indexed in Scilit:
- Tetrasomy 21 in an infant with down syndrome and congenital leukemiaAmerican Journal of Medical Genetics, 1982
- Selective endoreduplication or branched chromosome?Experimental Cell Research, 1977