Ring 21 chromosome presenting with epilepsy and intellectual disability: Clinical report and review of the literature

2011 ◽  
Vol 155 (4) ◽  
pp. 911-914 ◽  
Author(s):  
Nicola Specchio ◽  
Antonio Carotenuto ◽  
Marina Trivisano ◽  
Simona Cappelletti ◽  
Cristina Digilio ◽  
...  
Author(s):  
Enrico Boninsegna ◽  
Emilio Simonini ◽  
Stefano Crosara ◽  
Antonia Semeraro ◽  
Stefano Colopi

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Qiao-Yan Shao ◽  
Pei-Lin Wu ◽  
Bi-Yun Lin ◽  
Sen-Jing Chen ◽  
Jian Liu ◽  
...  

Abstract Background Terminal deletion of chromosome 10p is a rare chromosomal abnormality. We report a neonatal case with a large deletion of 10p15.3p13 diagnosed early because of severe clinical manifestations. Case presentation Our patient presented with specific facial features, hypoparathyroidism, sen sorineural deafness, renal abnormalities, and developmental retardation, and carried a 12.6 Mb deletion in the 10p15.3 p13 region. The terminal 10p deletion involved in our patient is the second largest reported terminal deletion reported to date, and includes the ZMYND11 and GATA3 genes and a partial critical region of the DiGeorge syndrome 2 gene (DGS2). Conclusion On the basis of a literature review, this terminal 10p deletion in the present case is responsible for a specific contiguous gene syndrome. This rare case may help the understanding of the genotype–phenotype spectrum of terminal deletion of chromosome 10p.


2018 ◽  
Vol 34 (2) ◽  
pp. 86-93 ◽  
Author(s):  
John C. Herriges ◽  
Ellen M. Arch ◽  
Pamela A. Burgio ◽  
Erin E. Baldwin ◽  
Danielle LaGrave ◽  
...  

To date, 13 patients with interstitial microduplications involving Xq25q26.2 have been reported. Here, we report 6 additional patients from 2 families with duplications involving Xq25q26.2. Family I carries a 5.3-Mb duplication involving 26 genes. This duplication was identified in 3 patients and was associated with microcephaly, growth failure, developmental delay, and dysmorphic features. Family II carries an overlapping 791-kb duplication that involves 3 genes. This duplication was identified in 3 patients and was associated with learning disability and speech delay. The size and gene content of published overlapping Xq25q26.2 duplications vary, making it difficult to define a critical region or establish a genotype-phenotype correlation. However, patients with overlapping duplications have been found to share common clinical features including microcephaly, growth failure, intellectual disability, learning difficulties, and dysmorphic features. The 2 families presented here provide additional insight into the phenotypic spectrum and clinical significance of duplications in this region.


2016 ◽  
Vol 4 (8) ◽  
pp. 824-830 ◽  
Author(s):  
Katrin Õunap ◽  
Sander Pajusalu ◽  
Olga Zilina ◽  
Tiia Reimand ◽  
Riina Žordania

2018 ◽  
Vol 6 (11) ◽  
pp. 2103-2110 ◽  
Author(s):  
Sofia Frisk ◽  
Catherine Grandpeix-Guyodo ◽  
Karin Popovic Silwerfeldt ◽  
Helgi Thor Hjartarson ◽  
Dimitris Chatzianastassiou ◽  
...  

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Sayeeda Hana ◽  
Deepak karthik ◽  
Jingxuan Shan ◽  
Stephany El Hayek ◽  
Lotfi Chouchane ◽  
...  

Recessive mutations in the TMTC3 gene have been reported in thirteen patients to date exhibiting development delay, intellectual disability (ID), seizures, and muscular hypotonia, accompanied occasionally by neuronal migration defects expressed as either cobblestone lissencephaly or periventricular hypertopia. Here, we report a new case of a TMTC3-related syndrome in a Lebanese family with two affected siblings showing severe psychomotor retardation, intellectual disability, microcephaly, absence of speech, muscular hypotonia, and seizures. Whole exome sequencing revealed a homozygous pathogenic variant c.211 C > T (p.R71C) in the TMTC3 gene in both siblings. A review of the literature on TMTC3-related syndrome and its causal mutations is provided.


2017 ◽  
Vol 06 (04) ◽  
pp. 227-233 ◽  
Author(s):  
Irina Novikova ◽  
Paushpala Sen ◽  
Ann Manzardo ◽  
Merlin Butler

AbstractWe present a clinical report of an 11-year-old male patient with an interstitial duplication of 19p13.3 (829 kb in size) at genomic coordinates 3,804,495–4,033,722 bp (hg19) identified by chromosomal microarray analysis and review the literature from nine published reports adding knowledge regarding this chromosomal anomaly and clinical outcomes. The size of the duplication ranged from 0.83 to 8.9 Mb in the nine individuals. The young boy in our report was dysmorphic with microcephaly, abnormal craniofacial features, intellectual disability, aggression, and a heart murmur. All patients were found to have a psychomotor developmental delay and/or intellectual disability with the majority having microcephaly, intrauterine growth retardation, and hypotonia. Common craniofacial findings included a tall, prominent forehead, an elongated face, epicanthal folds, hypertelorism, prominent low-set ears, philtrum anomaly, and a small mouth. Other less common features included abnormal digits, sparse hair, and cardiac defects. Clinical features, chromosome duplication sizes, locations, and the number of genes will be summarized in a tabular form.


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Trupti Kale ◽  
Melissa Philip

Interstitial deletions of the distal 7q region are considered a rare entity. In this report, we describe a seven-year-old male with a heterozygous interstitial deletion at 7q33-36.1 with characteristic dysmorphic facial features, intellectual disability, severe microcephaly, and significant language delay. The primary focus of our report is to compare our case with the few others in the literature describing interstitial deletions at the long arm of chromosome 7. Based on the various breakpoints in prior studies, a number of phenotypic variations have been identified that are unique to each of the reports. However, there are also a number of similarities among these cases as well. We hope to provide a concise review of the literature and genes involved within our deletion sequence in the hope that it will contribute to creating a phenotypic profile for this patient population.


2015 ◽  
Vol 17 (1) ◽  
pp. 84-88
Author(s):  
Luca de Palma ◽  
Debora De Carlo ◽  
Elisabetta Lenzini ◽  
Clementina Boniver ◽  
Vincenza Tarantino ◽  
...  

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