trisomy 18


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Related to trisomy 18: trisomy 13

trisomy 18

n.
The condition of having three copies of chromosome 18 that results in a syndrome characterized by severe congenital abnormalities including craniofacial and cardiac defects, intellectual disability, and deformities of the hands and feet. Also called Edwards syndrome.
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No doctor testified that labelling infants with trisomy 18 as 'lethal' is inaccurate and steeped in disability bias.
Some obstetricians regard a cleft palate as a major abnormality, while some believe that TOP should be considered for only lethal conditions such as anencephaly and trisomy 18.
The noninvasive screen yields results for trisomy 21 (Down syndrome), trisomy 18 (Edwards syndrome), trisomy 13 (Patau syndrome), as well as certain sex chromosome-related disorders.
The non-invasive screen can uncover whether the foetus has trisomy 21 (Down's syndrome), trisomy 18 (Edwards' syndrome) or trisomy 13 (Patau syndrome), as well as certain sex chromosome-related disorders.
The 170 chromosomal abnormalities included trisomy 21 (92 cases, 54%), trisomy 18 (36 cases, 21%), trisomy 13 (13 cases, 8%), and others (29 cases, 17%) (Table 1).
The union of z scores and ANN results was used to classify samples as fetal euploid, fetal trisomy 21, or fetal trisomy 18.
For trisomy 18 and trisomy 13, 9% (6/67) screened positive in each group.
The tot was diagnosed with Trisomy 18 when she was just five days old.
Panorama is a safe and easy way for expectant mothers to know the health of their fetus without an invasive diagnostic procedure, to screen for chromosome abnormalities, including trisomy 21 (Down syndrome), trisomy 18 (Edwards syndrome), trisomy 13 (Patau syndrome), monosomy X (Turner syndrome), and triploidy.
cfDNA testing was done on 1909 maternal blood samples for trisomy 21 and 1905 for trisomy 18.
However, the rate of trisomy 22 and the total rate of trisomies 21, 13, and 18 (the number of trisomy 21 plus trisomy 13 and trisomy 18 together) showed significantly different in two groups.
The condition, also known as as trisomy 18, is a serious genetic condition caused by an additional copy of chromosome 18 in some or all of the cells in the body.