Prenatal diagnosis and molecular cytogenetic characterization of concomitant familial small supernumerary marker chromosome derived from chromosome 4q (4q11.1–q13.2) and 5q13.2 microdeletion with no apparent phenotypic abnormality
نویسندگان
چکیده
منابع مشابه
Prenatal detection and characterization of a small supernumerary marker chromosome (sSMC) derived from chromosome 22 with apparently normal phenotype.
OBJECTIVE To present prenatal findings and molecular cytogenetic characterization of a small supernumerary marker chromosome (sSMC) derived from chromosome 22 with apparently normal phenotype. CASE AND METHODS An amniocentesis was performed at 15 weeks' gestation and a small marker chromosome in the female fetus of a twin pregnancy was noted. A second amniocentesis was performed at 18 weeks; ...
متن کاملPrenatal Diagnosis of 4p and 4q Subtelomeric Microdeletion in De Novo Ring Chromosome 4
Ring chromosomes are unusual abnormalities that are observed in prenatal diagnosis. A 23-year-old patient (gravida 1, para 0) referred for amniocentesis due to abnormal maternal serum screening result in the 16th week of second pregnancy. Cytogenetic analysis of cultured amniyotic fluid cells revealed out ring chromosome 4. Both maternal and paternal karyotypes were normal. Terminal deletion wa...
متن کاملA small supernumerary marker chromosome, derived from chromosome 22, possibly associated with repeated spontaneous abortions.
We report a phenotypically normal couple with repeated spontaneous abortions and without other clinical features. Clinical, hematological, biochemical, and endocrinological aspects of the couple did not reveal any abnormalities. The karyotype of the wife was normal (46,XX), while the husband was found to have an abnormal karyotype, 47,XY,+der(22)mat. The marker chromosome was familial and non-s...
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Marker chromosomes are very rare in Klinefelter patients and phenotypic findings are related to the affected chromosomal region. The phenotypic effects of small supernumerary marker chromosomes (sSMC) range from multiple malformations/mental retardation to no effect (ie a normal phenotype). This wide spectrum of phenotypes is due to the origin, structure and gene content of the marker chromosom...
متن کاملnewborn with supernumerary marker chromosome derived from chromosomes 11 and 22- a case report
the interpretation of supernumerary chromosome is important for genetic counseling and prognosis. here, we used snp array and conventional karyotyping method to identify a denovo marker chromosome originated from chromosome 22 and 11 in a newborn transferred to the neonatal intensive care unit of shahid sadoughi hospital in 2015. clinical abnormalities identified in the newborn were dysmorphic...
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ژورنال
عنوان ژورنال: Taiwanese Journal of Obstetrics and Gynecology
سال: 2017
ISSN: 1028-4559
DOI: 10.1016/j.tjog.2017.01.002