We describe two patients (first cousins, once removed) with an unusual head shape, high arched palate, flat nasal bridge, abnormal ears, hand and feet abnormalities and other anomalies. The patients were ascertained independently and it was initially unknown that they were related to each other. Cytogenetic and fluorescent in situ hybridization (FISH) analysis identified a der(2)t(2;10)(q37.3;q24.1) unbalanced translocation resulting in loss of 2q37.3-qter and duplication 10q24.1-qter. The clinical features of these two patients are compared with previously described cases of 2q deletion and 10q duplication. These patients also emphasize the difficulty in some families of understanding and sharing genetic information and in the difficulties in obtaining an accurate pedigree in a genetics clinic.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/s0003-3995(01)01083-8 | DOI Listing |
Endocrine
July 2024
Department of Endocrinology, Key Laboratory of Endocrinology, National Health Commission, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China.
Background: 2q37 microdeletion syndrome is a rare clinical condition characterized by a series of physical abnormalities. Its Albright hereditary osteodystrophy (AHO)-like manifestations and possible complication of biochemical abnormalities indicating PTH resistance greatly increased the likelihood of misdiagnosis with classic pseudohypoparathyroidism (PHP) caused by GNAS mutation or methylation alteration, even though there have only been six reports of such clinical occasions.
Purpose: to investigate the underlying genetic defect in a male patient presenting hypocalcemia, elevated PTH and with a history of kyphosis.
Clin Pediatr Endocrinol
February 2023
Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan.
Brachydactyly mental retardation syndrome (BDMR) or chromosome 2q37 deletion syndrome is a genetic disorder caused by 2q37 deletion or haploinsufficiency of histone deacetylase 4 (HDAC4). The gene is responsible for major BDMR phenotypes. The symptoms of BDMR include mild-to-moderate intellectual disability, seizures, autism spectrum disorder, short stature, obesity, and facial dysmorphism.
View Article and Find Full Text PDFGenes (Basel)
February 2023
Medical Genetics Department, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, University Street, No 16, 700115 Iasi, Romania.
Unlabelled: 2q37 microdeletion/deletion syndrome (2q37DS) is one of the most common subtelomeric deletion disorders, caused by a 2q37 deletion of variable size. The syndrome is characterized by a broad and diverse spectrum of clinical findings: characteristic facial dysmorphism, developmental delay/intellectual disability (ID), brachydactyly type E, short stature, obesity, hypotonia in infancy, and abnormal behavior with autism spectrum disorder. Although numerous cases have been described so far, the exact mapping of the genotype and phenotype have not yet been achieved.
View Article and Find Full Text PDFCytogenet Genome Res
February 2023
Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Brachydactyly mental retardation syndrome (BDMR) typically results from large deletions (>2-9 Mb) in distal 2q37. Haploinsufficiency of HDAC4 with incomplete penetrance has been proposed as the primary genetic cause of BDMR. To date, pure 2q37 deletions distal to HDAC4 were reported only in a limited number of individuals who share a subset of the clinical manifestations seen in cases with 2q37 deletions encompassing HDAC4.
View Article and Find Full Text PDFZhonghua Yan Ke Za Zhi
November 2022
Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China.
A child complained of bilateral congenital non-progressive ptosis for 18 months. According to the clinical characteristics, systemic development and chromosome microarray analysis, the child was diagnosed as 2q37 deletion syndrome related ophthalmo facial malformation. The patient underwent the frontalis aponeurosis flap suspension.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!