An embryo that has a portion of a chromosome deleted/duplicated is a “segmental” aneuploid (or mosaic). In contrast to “whole”, where the entire chromosome is affected. Example: 47, XY, +2 (duplication of the entire chromosome 2). Read more on my blog about PGS testing
Synonyms:
segmental aneuploid, segmental abnormal, segmental mosaic, segmental mosaics, whole chromosome, whole chromosomes, whole chromosomal, multiple segmental, partial aneuploid, partial aneuploidy, partial abnormal