Partial trisomy 13q21→qter de novo due to a recombinant chromosome rec(13)dup q
✍ Scribed by M. Habedank
- Publisher
- Springer
- Year
- 1979
- Tongue
- English
- Weight
- 531 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0340-6717
No coin nor oath required. For personal study only.
✦ Synopsis
A female is described who has a karyotype with an additional distal half of 13q in a recombinant rec(13)dup q chromosome. Since her parents have normal karyotypes, the origin of her karyotype is assumed to be a premeiotic pericentric inversion de novo with crossing-over within the inversion loop at meiosis. By means of various banding techniques, the breaks preceding the rearrangement could be located exactly. The joint between the duplicated segment and the satellites of the receptor chromosome is of special note. The phenotype of the patient stated at the age of 9 months and at the age of 7 1/2 years was found to be related to the segments involved in the partial trisomy. The clinical features were largely in accordance with previous case reports having an identical extent of the triplicated 13q segment.
📜 SIMILAR VOLUMES
## Abstract We present a female infant with mild dysmorphic features and congenital heart defect: hypoplastic left heart with aortic atresia and hypoplastic aortic arch, ventricular septal defect, and a nonrestrictive atrial communication. Chromosome analysis showed an unbalanced translocation that
Partial trisomy 17q22-qter is a rare but well-recognized clinical entity. We present a case of partial trisomy for the long arm of chromosome 17, which was detected in a female infant with severe psychomotor and somatic retardation, Stargardt disease, short limbs, and numerous minor anomalies. Diffe
We describe the prenatal diagnosis and fetal phenotype of partial trisomy 12 (p13.3-pter) and partial trisomy 21 (pter-q21) due to a 3:1 segregation with tertiary aneuploidy transmitted from a maternal reciprocal translocation 12;21. Genetic amniocentesis of a 39-year-old gravida 2, para 1 woman at
## Abstract In the neurodevelopmentally impaired population the frequency of small supernumerary marker chromosomes (sSMC) is about 0.3%. To find the origin of a sSMC in a 4‐year‐old boy with Asperger syndrome (AS) a microarray‐based comparative genomic hybridization (aCGH), using a 135K‐feature wh