Chromosome 9, tetrasomy 9p
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Tetrasomy of short arm of chromosome 9 constitutes a clinically recognizable chromosomal syndrome. Isochromosome 9p shows a… Expand Dhandha et al.  report three cases of tetrasomy 9p andprovide a useful and interesting case review from the literature… Expand We report three cases of tetrasomy 9p, two of which were confirmed prenatally. All three had characteristic findings on… Expand In a recent study Bugge etal1 and Kotzot etal2 reported that isochromosomes 18p originate mainly from maternal meiosis II… Expand Tetrasomy 9p is a rare syndrome that has now been described in nearly a score of cases. We present a new case of i(9p) that… Expand Supernumerary isochromosomes resulting in autosomal tetrasomy are rare and have been described only for 12p, 18p, and 9p… Expand A fetus with multiple malformations was identified by prenatal ultrasound investigation. Cordocentesis and fetal lymphocyte… Expand Cytogenetic analysis of an abnormal newborn girl showed an extra chromosome with the characteristics of an isodicentric 9p… Expand A new patient with trisomy for the chromosome segment 9pter----q22 is compared to 19 previously reported cases of partial trisomy… Expand We report a boy aged 12 years 7 months with mental retardation, hydrocephalus, dysmorphic facial features, congenital heart… Expand