RT Journal Article
SR Electronic
T1 Trisomy 18 syndrome with an unusual karyotype: possible double isochromosome.
JF Journal of Medical Genetics
JO J Med Genet
FD BMJ Publishing Group Ltd
SP 73
OP 76
DO 10.1136/jmg.15.1.73
VO 15
IS 1
A1 Larson, L M
A1 Wasdahl, W A
A1 Saumur, J H
A1 Coleman, M L
A1 Jalal, S M
YR 1978
UL http://jmg.bmj.com/content/15/1/73.abstract
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.