A small supernumerary metacentric chromosome: interprétation test
Ayraud, N.; Noel, B.; Llyod, M.; Letourneau, J.; Martinon, J.
Journal de Genetique Humaine 24(2): 81-93
1976
ISSN/ISBN: 0021-7743 PMID: 965953 Document Number: 108004
The report relates to a new case of small supernumerary metacentric chromosome. The phenotypical variability of previously published cases suggests that this chromosomal anomaly may arise from multiple origins. Our study shows the difficulties of a cytogenetic interpretation and the limits of the semeiologic arguments. It is, however, possible to hypothesize an 18 partial trisomy.