PT  - JOURNAL ARTICLE
AU  - Larson, L M
AU  - Wasdahl, W A
AU  - Saumur, J H
AU  - Coleman, M L
AU  - Jalal, S M
TI  - Trisomy 18 syndrome with an unusual karyotype: possible double isochromosome.
AID  - 10.1136/jmg.15.1.73
DP  - 1978 Feb 01
TA  - Journal of Medical Genetics
PG  - 73--76
VI  - 15
IP  - 1
4099  - http://jmg.bmj.com/content/15/1/73.short
4100  - http://jmg.bmj.com/content/15/1/73.full
SO  - J Med Genet1978 Feb 01; 15
AB  - Chromosome analysis of an infant with characteristic features of trisomy 18 is presented. The chromosome complement contained a modal count of 47 but there was only one No. 18. In addition, there were two metacentric chromosomes of different sizes. The two metacentric chromosomes were identified by G- and C-banding to be possible isochromosomes of the long and short arms of a No. 18 chromosome.