Clinical experience with trisomies 18 and 13.
The clinical, cytogenetic, dermatoglyphic, and postmortem observations of the 29 cases of trisomy 18 and 19 cases of trisomy 13 seen in the Department of Medical Genetics from 1963-76 are summarised. Chromosomes were studied in all and 30 were banded. One patient had tertiary trisomy 18 and 8 had translocations of chromosome 13. The features of these patients are described and the syndromes compared with each other and summaries found in the literature.
D002869:Chromosome Aberrations / Q000175:diagnosis / Q000235:genetics*; D025063:Chromosome Disorders; D002877:Chromosomes, Human; D002901:Chromosomes, Human, 13-15; D002902:Chromosomes, Human, 16-18; D003878:Dermatoglyphics; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D008423:Maternal Age; D010331:Paternal Age; D013577:Syndrome; D014314:Trisomy