scholarly journals Combination of Gonadal Dysgenesis and Monosomy X with a Novo Translocation (13,14)

2018 ◽  
Vol 2018 ◽  
pp. 1-3 ◽  
Author(s):  
Hanane Latrech ◽  
Houssein Madar ◽  
Ahmed Gaouzi
Keyword(s):  
Turner Syndrome ◽  
Clinical Features ◽  
X Chromosome ◽  
Gonadal Dysgenesis ◽  
Clinical Presentation ◽  
Sex Chromosome ◽  
De Novo ◽  
First Case ◽  
Chromosome Disorder ◽  
De Novo Translocation

Turner syndrome is a common sex chromosome disorder characterized by complete or partial absence of an X chromosome. The spectrum of its clinical features and cytogenetics are various. We report new chromosomal formula revealed by DSD and associated with translocation (13,14). To our knowledge, this is the first case of 45X, t(13;14) de novo translocation as a variation of Turner syndrome in a patient with this clinical presentation.

scholarly journals Cytogenetic and genomic analysis of a patient with turner syndrome and t(2;12): a case report

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Paola E. Leone ◽  
Verónica Yumiceba ◽  
Ariana Jijón-Vergara ◽  
Andy Pérez-Villa ◽  
Isaac Armendáriz-Castillo ◽  
...  
Keyword(s):  
Case Report ◽  
Turner Syndrome ◽  
Clinical Features ◽  
X Chromosome ◽  
Genetic Disorder ◽  
Genomic Analysis ◽  
Common Finding ◽  
Mild Intellectual Disability ◽  
First Case ◽  
Conventional Cytogenetics

Abstract Background Turner syndrome is a genetic disorder that affects women. It is caused by an absent or incomplete X chromosome, which can be presented in mosaicism or not. There are 12 cases of Turner syndrome patients who present structural alterations in autosomal chromosomes. Case presentation The present case report describes a patient with a reciprocal, maternally inherited translocation between chromosomes 2 and 12 with a mosaicism of X monosomy 45,X,t(2;12)(p13;q24)[95]/46,XX,t(2;12)(p13;q24)[5]. Through genetic mapping arrays, altered genes in the patient were determined within the 23 chromosome pairs. These genes were associated with the patient’s clinical features using a bioinformatics tool. Conclusion To our knowledge, this is the first case in which a translocation (2;12) is reported in a patient with Turner syndrome and confirmed by conventional cytogenetics, FISH and molecular genetics. Clinical features of our patient are closely related with the loss of one X chromosome, however mild intellectual disability can be likely explained by autosomal genes. The presence of familial translocations was a common finding, thus emphasizing the need for familiar testing for further genetic counselling.

CONGENITAL PTERIONAL DERMAL SINUS IN AN 18-MONTH-OLD CHILD

Neurosurgery ◽  
2007 ◽  
Vol 61 (3) ◽  
pp. E661-E661 ◽  
Author(s):  
William J. Mack ◽  
Saadi Ghatan
Keyword(s):  
Clinical Features ◽  
Neural Tube ◽  
Clinical Presentation ◽  
Sinus Tract ◽  
Dermal Sinus ◽  
Operating Microscope ◽  
First Case ◽  
Dermal Sinus Tract ◽  
Cranial Fossa ◽  
Congenital Dermal Sinus

Abstract OBJECTIVE Congenital dermal sinus tracts most frequently occur in the midline and are often associated with dermoid or epidermoid inclusion cysts. A lateral cranial origin is extremely rare and anatomically inconsistent with an etiology involving closure of the rostral neural tube during embryogenesis. CLINICAL PRESENTATION We describe the first case of a pterional cranial dermal sinus tract associated with a small epidermoid, with extension to the dura of the anterior cranial fossa. INTERVENTION The extra- and intracranial portions of the tract were visualized and resected with the use of an operating microscope. Pathological diagnosis confirmed dermal sinus tract. CONCLUSION We review the existing literature and address the developmental and clinical features pertinent to the management of cranial dermal sinus tracts, emphasizing the need for exploration of these potentially harmful lesions.

scholarly journals Chiari I Malformation Associated with Turner Syndrome

2017 ◽  
Vol 08 (02) ◽  
pp. 277-280 ◽  
Author(s):  
Kamble Jayaprakash Harsha ◽  
Jeevan S. Nair
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Turner Syndrome ◽  
Genetic Disease ◽  
Clinical Presentation ◽  
Chiari I Malformation ◽  
Resonance Imaging ◽  
Cough Headache ◽  
First Case ◽  
Chiari I

ABSTRACTTurner syndrome (TS) is a rare genetic disease due to the absence of one X chromosome. Patients with TS have more subtle neurological/neuropsychiatric problems, while headache is an uncommon clinical presentation which needs attention. We report a 12-year-old child presenting with typical cough headache. Her magnetic resonance imaging revealed Chiari I malformation associated with TS. To the best of our knowledge, Chiari I malformation associated with TS is not described in literature. We report the first case of TS associated with Chiari I malformation. Interestingly, Chiari I malformation is also associated with Noonan’s syndrome, which is a close morphological mimicker of TS, raising the possibility of sharing similar pathogenesis in both conditions.

Long-term follow-up of a child with Klinefelter syndrome and achondroplasia from infancy to 16 years

2017 ◽  
Vol 30 (7) ◽  
Author(s):  
Jessica D. Arditi ◽  
Loretta Thomaidis ◽  
Helen Frysira ◽  
Artemis Doulgeraki ◽  
George P. Chrousos ◽  
...  
Keyword(s):  
Sex Chromosome ◽  
De Novo ◽  
Klinefelter Syndrome ◽  
Pubertal Development ◽  
Pediatric Endocrinology ◽  
Case Presentation ◽  
Long Term Follow Up ◽  
Chromosome Disorder

AbstractBackground:Achondroplasia (ACH), an autosomal dominant skeletal dysplasia, occurs in approximately 1:20,000 births. On the other hand, 47,XXY aneuploidy (Klinefelter syndrome [KS]) is the most common sex chromosome disorder, with a prevalence of approximately 1:600 males. To the best of our knowledge, only five cases of patients presenting both ACH and KS have been reported to date in the international literature. However, none of these cases has been longitudinally followed during the entire childhood.Case presentation:We report a male patient with ACH and KS, diagnosed in early infancy because of his typical phenotype of ACH. The diagnosis was confirmed by molecular analysis revealing a de novo heterozygous 1138 G-to-A mutation of theConclusions:This is the first reported case with both conditions that was diagnosed in infancy and was longitudinally followed by a pediatric endocrinology team regularly, from infancy to late adolescence. With a typical phenotype of ACH, it is striking and noteworthy that he did not develop the classical endocrine complications of a child with KS, neither did he necessitate testosterone supplementation during his pubertal development, due to his normal virilization and testosterone levels.

Health Supervision for Children With Turner Syndrome

PEDIATRICS ◽  
1995 ◽  
Vol 96 (6) ◽  
pp. 1166-1173
Author(s):  
Keyword(s):  
Short Stature ◽  
Turner Syndrome ◽  
X Chromosome ◽  
Sex Chromosome ◽  
First Trimester ◽  
Clinical Findings ◽  
Chromosome Constitution ◽  
Birth Prevalence ◽  
Frequent Use ◽  
Wide Range

This set of guidelines is designed to assist the pediatrician in caring for the child in whom the diagnosis of Turner syndrome has been confirmed by karyotype. Although the pediatrician's first contact with the child is usually during infancy, occasionally the pregnant woman who has been given the prenatal diagnosis of Turner syndrome will be referred for advice. Therefore, these guidelines offer advice for this situation as well. Turner syndrome, as used here, refers to a condition in which there is short stature and ovarian dysgenesis in females because of the absence of a normal second sex chromosome. Nonchrornosomal gonadal dysgenesis is excluded. The birth prevalence of Turner syndrome has been estimated to be from 1:2000 to 1:5000 female live births. About 1% to 2% of all conceptuses have a 45,X chromosome constitution. Of these, the majority (99%) spontaneously abort, usually during the first trimester of pregnancy. With the more frequent use of ultrasound, it is recognized that some pregnancies with a fetal 45,X chromosome constitution progressing into the second trimester are associated with nuchal cysts, severe lymphedema, or hydrops fetalis. These pregnancies are associated with a high frequency of fetal death. PHENOTYPE Pediatricians are most familiar with the clinical findings that prompt the diagnosis in children, namely, short stature and the classic Turner syndrome features such as lymphederna, webbed neck, low posterior hair line, and cubitus valgus. A wide range of clinical abnormalities may be found (Table 1). Turner syndrome, however, is not always accompanied by distinctive features and most often is not diagnosed in infancy.

Cognitive and Behavioral Manifestations in Turner Syndrome

2010 ◽  
Author(s):  
Aysenil Belger ◽  
Sarah J. Hart
Keyword(s):  
Turner Syndrome ◽  
Health Care Providers ◽  
X Chromosome ◽  
Behavioral Problems ◽  
Structural Changes ◽  
Sex Chromosome ◽  
Genetic Disorder ◽  
Clinical Manifestations ◽  
Expression Of Genes ◽  
Recessive Genes

Turner Syndrome (TS) is a common genetic disorder that affects approximately 1 in 1,900 live female births. Like other sex chromosome abnormalities (SCAs), TS has high morbidity due to associated congenital abnormalities, neurodevelopmental disturbances, neurocognitive deficits, and social-behavioral problems. Many individuals with TS are not diagnosed. Those who are identified may be subject to inadequate care, bias, and discrimination because of a poor understanding of the condition among families, health care providers, and educators, especially regarding developmental profiles and outcomes. Turner syndrome results from an abnormal or missing second sex (i.e., X) chromosome, and by definition, affects only females. There is tremendous variability in the clinical presentations of individuals with TS that is likely due to the variable nature of the genetic abnormality. Approximately 50% of girls with TS have a 45X karyotype (Savendahl and Davenport 2000; Soriano-Guillen et al. 2005; Sybert and McCauley 2004), with the remainder having either a structural abnormality or mosaicism involving the X chromosome. Structural changes of the X chromosome include deletions, breakage of both arms to form a ring chromosome, or breakage and exchange in the X centromere region to form an isochromosome. Common mosaic patterns include 45,X/46,XX, 45,X/46,X,i(X), and 45, X/46,XY (Table 19.1). Correlations of clinical phenotype with cytogenetic data are further complicated by the wide range of structural abnormalities, as well as by mosaicism, differences in X-inactivation patterns, and the presence of abnormal recessive genes (Ogata and Matsuo 1995). Girls with 45X karyotype tend to be most severely affected, and there is less variability within this group than in the population as a whole. Many of the clinical manifestations of TS can be understood in the context of reduced expression of genes on the X chromosome (Neely 1994; Zinn and Ross 1998; Zinn et al. 1998). In normal females, one X chromosome is inactivated; however, the process is not complete. Genes on the X-chromosome that are not inactivated, so-called pseudoautosomal genes, are present in a cluster near the tip of the short arm and scattered elsewhere.

scholarly journals A Rare Case of Unilateral Morning Glory Disc Anomaly in a Patient with Turner Syndrome: Report and Review of Posterior Segment Associations

2018 ◽  
Vol 2018 ◽  
pp. 1-3
Author(s):  
Dev R. Sahni ◽  
Michael Wallace ◽  
Mansi Kanhere ◽  
Hind Al Saif ◽  
Natario Couser
Keyword(s):  
Turner Syndrome ◽  
Sex Chromosome ◽  
Anterior Segment ◽  
Clinical Manifestations ◽  
Morning Glory ◽  
Structural Abnormality ◽  
Partial Loss ◽  
Rare Presentation ◽  
Morning Glory Disc Anomaly ◽  
Chromosome Disorder

Turner syndrome is a common sex chromosome disorder affecting females. The disorder is caused by a partial loss, complete absence, or structural abnormality of one X chromosome. The clinical presentation is broad and ranges from the classic phenotype to minimal clinical manifestations. Ocular abnormalities associated with the syndrome are common. Reports describing abnormal eye features in individuals with Turner syndrome generally involve refractive errors (myopia or hyperopia), strabismus, and external or anterior segment abnormalities including hypertelorism, epicanthal folds, and ptosis. Posterior ocular segment anomalies involving the optic nerve and retina in Turner syndrome have been rarely reported. We report a rare presentation of an 11-year-old female with Turner syndrome and unilateral morning glory disc anomaly.

Extensive Analysis of Mosaicism in a Case of Turner Syndrome

1999 ◽  
Vol 123 (5) ◽  
pp. 381-385
Author(s):  
Jonathan P. Park ◽  
Arthur R. Brothman ◽  
Merlin G. Butler ◽  
Linda D. Cooley ◽  
Gordon W. Dewald ◽  
...  
Keyword(s):  
Turner Syndrome ◽  
Cell Lines ◽  
X Chromosome ◽  
Sex Chromosome ◽  
Chromosome Instability ◽  
Extensive Study ◽  
Small Ring ◽  
X Chromosomes ◽  
Cytogenetic Survey ◽  
N 93

Abstract Objective.—To assemble and interpret karyotype data provided as part of the College of American Pathologists/American College of Medical Genetics Cytogenetics Proficiency Testing Program. Data Sources, Extraction, and Synthesis.—The Cytogenetics Resource Committee requested data on all cells analyzed in a 1994 whole-blood specimen challenge. In that study, 287 participating laboratories analyzed a total of 14297 cells derived from a sample drawn from an adult donor with Turner syndrome. This individual had previously been found to have mosaicism, including cell lines with X structural anomalies along with monosomy X, making this an excellent challenge for a multicenter cytogenetic survey. Results and Conclusions.—Analysis of the data from this extensive study revealed mosaicism of up to 10 different sex chromosome complements involving the X chromosome with and without a small ring X or a derivative X chromosome. In the routine cytogenetic analysis performed by the participating laboratories, cell lines observed, in decreasing order of prevalence, included 45,X (n = 8357 cells), 46,X,r(X) (n = 3597), 46,X,der(X)t(X;X) (n = 2237), 46,XX (n = 93), 47,X,r(X),r(X) (n = 5), 47,X,der(X)t(X;X),der(X)t(X;X) (n = 3), 47,XX,r(X) (n = 2), and one observation each of 47,XX,der(X)t(X;X), 47,X,der(X)t(X;X),r(X), and 47,XXX. Our molecular cytogenetic data, as well as detailed analysis of G-banded chromosomes, suggest the nomenclature for these 2 abnormal X chromosomes as r(X)(p11.3q21.3) and der(X)t(X;X)(p11.3;q21.3), and we discuss models for the concomitant formation of these 2 entities. Both the degree of analysis and the extensive mosaicism that was discovered in this study are exceptional, and similar reported cases as well as possible mechanisms for the observed X chromosome instability are reviewed.

P902Danon disease: clinical features and outcomes

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Brambatti ◽  
Y Esshaki ◽  
S Vanam ◽  
V Escobedo ◽  
G Macias ◽  
...  
Keyword(s):  
Clinical Features ◽  
Clinical Presentation ◽  
De Novo ◽  
Positive Family History ◽  
Clinical Manifestations ◽  
De Novo Mutation ◽  
Rank Test ◽  
De Novo Mutations ◽  
Cardiac Morbidity ◽  
Danon Disease

Abstract Background Danon Disease (DD) is a rare X-linked autophagic vacuolar myopathy, characterized by high penetrance and severe cardiomyopathy; cognitive, skeletal muscle and vision impairment may occur as well. Due to its rarity, clinical presentation and outcomes are still uncertain. Purpose To describe clinical features and outcomes of DD in female and male patients Methods Individuals and families from United Kingdom, Australia, and United States were recruited through via advertisements on Facebook groups related to DD. Participants completed a survey about symptoms and medical history and provided their medical records to the research team. Results A total of 44 patients (54.5% female) with positive genetic testing for DD were included. De novo mutations occurred in one out of four patients. Cardiomyopathy occurred in 86.3% of patients (18/24 females, 20/20 males) at a mean age of 7.3 years for males and 19.4 years for females (p=0.001). Females presented with either hypertrophic cardiomyopathy (HCM, 66.7%) or dilated cardiomyopathy (DCM, 8.3%) whereas males presented with HCM 90% of the time. 34.2% of patients were diagnosed with Wolff-Parkinson-White syndrome. Twelve patients (7 females, 5 males) underwent cardiac magnetic resonance (CMR) Out of the 9 cases, 8 (88.9%) exhibited extensive patchy late gadolinium-enhancement (LGE) in multiple segments of the left ventricle; 3 cases also had right ventricular LGE. Median cardiac mass index was 155 g/m2 (Q1-Q3: 70–237; v.n. 31–79 g/m2). Overall, 17 (38.6%) patients died or required or heart transplant (HTx). Median age at the time of death or HTx was 17 years and 42 years in males and females, respectively (p=0.025 by the log-rank test) Cognitive impairment, mainly described as learning disabilities, was diagnosed in 90.0% of males (18/20) and 79.2% (19/24) of females; intelligence quotient (IQ) measurement was reported in 8 patients (3 females, 5 males) and 7 of them showed IQ below the average. Symptomatic skeletal myopathy was present in 28 (63.3%) of patients, with a higher prevalence in males (85% vs. 45.8%; p<0.01). Retinopathy was reported in 14 (31.2%) patients and occurred equally in both genders (p=0.34). Conclusions DD causes significant cardiac morbidity with the need for transplant at a young age; in 25% of cases DD is due to a de novo mutation. While in males DD is more frequently multisystemic with a more rapid clinical deterioration, in females the clinical presentation is variable. However, the presence of severe cases in females warrant the clinicians to screen for DD in both sexes with clinical manifestations or positive family history Acknowledgement/Funding Rocket Pharmaceuticals

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