Down syndrome is caused by an extra or part of an extra 21st chromosome while Turner syndrome is caused by an absence in one or part of the sex(X) chromosome.Down syndrome can occur in … DOWN SYNDROME Most common chromosomal disorder INCIDENCE If maternal age is <20 yrs ,Approximately 1 in 1550 live births, But if maternal age is >45 yrs ,incidence is 1 in 25 live births 4. 1. Down syndrome causes a distinct facial appearance, intellectual disability, developmental delays, and may be associated with thyroid or heart disease in a person. Turner syndrome is the complete or partial monosomy of the X chromosome which is characterized primarily by the hypogonadism in phenotypic females. The presence of full or partial extra three copies of chromosome 21 causes Down syndrome. By using our website, you consent to our use of cookies. Introduction . Symptoms of pain with sexual arousal warrants an evaluation by a gynecologist. Clinical features of Down's syndrome were present in all cases, whereas a combination of features of both Ullrich-Turner syndrome and Down's syndrome was reported in 61% of the patients. Mosaicism (or mosaic Down syndrome) exists when there are a mixture of two types of cells, some containing the usual 46 chromosomes and some containing 47. Highlighting phenotypic differences of Down Syndrome and Turner (45X) Syndrome Patients from different ethnic groups using computer-aided facial dysmorphology analysis Introduction: As computer-aided facial dysmorphology analysis technology becomes more frequent in the clinic, the issue of phenotypic syndrome variation based on ethnicity has been highlighted. Turner Syndrome and Down Syndrome Diagnosing Turner's Turner Syndrome Down Syndrome Three Types of Down Syndrome Most common chromosomal anomaly Incidence of 1 in 600 or 1 in 900 live births Newborns puffy hands and feet redundant nuchal skin suspected if edema or hypoplastic down syndrome vs turner syndrome. A 33-year-old member asked: what is the difference between down syndrome and turner syndrome? ... for any suspected condition should be performed as soon as possible, even from birth. It occurs in about 1 per 5000 adult females. Turner syndrome (TS) occurs in approximately one out of every 2,000- 4,000 female live births. genetic accidents. The presence of one chromosome in triplicate (2n + 1) is called as trisomy. Connect by text or video with a U.S. board-certified doctor now â wait time is less than 1 minute! Ask your question. Down Syndrome occurs in a fetus with a full or partial extra copy of Chromosome 21, with characteristic features, congenital anomalies, hypotonia & Intellectual Disability. It is a chromosomal condition describing girls and women with common features, physical traits and medical conditions caused by the complete or partial absence of the second sex chromosome. where chromosome 21 become trisomy. Both are caused by : genetic accidents. Down syndrome is caused by an extra or part of an extra 21st chromosome while. Any advice on childbearing? This is an uncommon nerve pain/dysfunction syndrome that usually begins with shoulder pain on one side and neurologic changes of reflexes and weakness ... Turner syndrome is typically found in short girls. where chromosome 21 become trisomy. Often, a short and webbed neck, low-set ears, low hairline at the back of the neck, short stature, and swollen hands and feet are seen at birth. The definitive test is a chromosome study. When Claire Bell became pregnant she paid for a test that would indicate whether the baby had Down's Syndrome - and agreed to be screened for some other rare … Down syndrome is caused by an extra or part of an extra 21st chromosome while. 49 years experience Developmental and Behavioral Pediatrics. In this condition, there is missin… Why is it that the "X" contributed by one specific parent gives rise to a specific Syndrome and not the other? An abnormal human female phenotype, called Turner syndrome, was described by H. H. Turner and associates 1938. What is mosaic turner syndrome? This type of Down syndrome, Trisomy 21, accounts for 95% of cases. This type of Down syndrome occurs when the two chromosomes 21 that originate from the mother fail to divide (or separate) and instead incorporate into either the mother’s egg or the father’s sperm (hence why this type is also known as non-disjunction). TS was first described in the United States in 1938 by Dr. Henry Turner. Some may have characteristic findings while others won't be diagnosed until later in life dep ... Turner syndrome occurs when there is one x chromosome missing.Boys get y chromosome from the fatther and x from mother, girls get x from the father an ... what is the difference between down syndrome and turner syndrome? Down syndrome or Mongolism is autosomal disorder and turner and klinefelter's syndrome are sex chromosomal disorder caused due to non disjunction. Also, Down Syndrome is Trisomy 21, which has nothing to do with the sex chromosomes. This page further explores this syndrome and its causes, symptoms, and treatment options. Common symptoms? Those cells with 47 chromosomes contain an extra chromosome 21. Turner Syndrome occurs in a female fetus with an incomplete or missing X Chromosome, with characteristic features, Non-Verbal Learning Disabilities, short stature & infertility. could a lower hairline in males be indicative of turner syndrome? What are the possible causes? 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