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Mosaic trisomy 7
MONDO:0015771Mosaic trisomy 7 is a rare chromosomal anomaly syndrome, with a highly variable phenotype, mostly characterized by blaschkolinear skin pigmentary dysplasia, body asymmetry, enamel dysplasia, and developmental and growth delay. Intellectual disability, facial dysmorphism (e.g. frontal bossing, abnormal palpebral fissures, strabismus, abnormally shaped ears, and micrognathia), and genital anomalies (e.g. undescended testes) have also been observed. It has been reported to be associated with maternal uniparental disomy of chromosome 7, resulting in a Silver-Russell syndrome phenotype. Cases with no associated malformations have also been reported.
Also known as: Mosaic trisomy type 7, Mosaic trisomy chromosome 7, trisomy 7 mosaicism
2 clinical trials for this condition and its sub-types, 0 tagged with Mosaic trisomy 7 itself.
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A simple blood draw could one day detect down syndrome in pregnancy
Diagnosis Recruiting nowResearchers are collecting blood samples from pregnant women at higher risk of having a baby with a chromosomal condition. The goal is to develop a noninvasive prenatal test that looks at cell-free DNA in the mother's blood to detect Down syndrome. Participants give blood between…
Sponsor: Sequenom, Inc. • Aim: Diagnosis
Last updated Sep 11, 2026 00:00 UTC
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New prenatal blood test aims to detect genetic disorders without invasive procedures
Diagnosis Recruiting nowThis study is testing a new blood test that looks for fetal cells in the mother's blood to detect genetic conditions like Down syndrome. The test will be compared to standard diagnostic methods such as amniocentesis or newborn testing. The study involves 1,000 pregnant individual…
Sponsor: BillionToOne Inc. • Aim: Diagnosis
Last updated Jun 27, 2026 13:06 UTC