Definizione, diagnosi, cause e terapia della Sindrome di Klinefelter. di cariotipo classico della Sindrome di Klinefelter: 47,XXY (Iitsuka et al, ; Bojesen et. Síndrome de Klinefelter o Síndrome 47, XXY. Definición. Es la presencia de un cromosoma X extra en un hombre. Su cariotipo de este síndrome es el siguiente: . Cariotipo síndrome de Klinefelter. Done. Comment. 6, views. 0 faves. 0 comments. Taken on March 10, All rights reserved · Tags · text.

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At 4 years and 2 months of age, he had skin picking and was able to pronounce few words even after speech therapy.

In it dwl discovered that Klinefelter syndrome resulted from an extra chromosome. Nondisjunction occurs when homologous chromosomes, in this case the X and Y or two X sex chromosomes, fail to separate, producing a sperm with an X and a Y chromosome or an egg with two X chromosomes.

The extra chromosome is retained because of a nondisjunction event during paternal or maternal meiosis I gametogenesis. Retrieved 15 March Orphanet Journal of Rare Diseases. Nearly normal life expectancy [6].

Often, the diagnosis is made incidentally as a result of edl and medical visits for reasons not linked to the condition. Clinical observation noted obesity, hyperphagia and developmental delay without any sign of increased intracranial pressure. Klinefelter syndrome usually occurs randomly.


Unfortunately, his mother died in an accident before the last exam. Byover successful pregnancies have been reported using IVF technology with surgically removed sperm material from carriotipo with KS.

Klinefelter syndrome – Wikipedia

Clinical-neurologic, cytogenetic and molecular aspects of the Prader-Willi and Angelman syndromes. Archived from the original on 18 March Klinefelter and trisomy X syndromes in patients with Prader-Willi syndrome and uniparental maternal disomy of chromosome Am J Med Genet ; A: Jacobs described her cariohipo of this first reported human or mammalian chromosome aneuploidy in her Dfl Allan Memorial Award address.

Nondisjunction occurs when sister chromatids on the sex chromosome, in this case an X and sindorme X, fail to separate. Another mechanism for retaining the extra chromosome is through a nondisjunction event during meiosis II in the egg. Archived from the original on 17 March An approach by occupational therapy is useful in children, especially mlinefelter who have dyspraxia. Oxford University Press, Carvalho I ; Clovis S.

Additionally, some authors reported that small penis and testes, or underdevelopment of external genitalia, are possible clues to precocious detection of Klinefelter children 9but these signs are found in few patients. Archived from the original on November 27, We report on a four-years-old boy, born to consanguineous parents, with uncommon co-occurrence of Prader-Willi syndrome, 47,XXY karyotype Klinefelter syndrome and coronal craniosynostosis. His grandmother became his legal guardian because his father moved away.

Cariotipo síndrome de Klinefelter | Candy | Flickr

Klinefelter syndrome is one of the most common chromosomal disordersoccurring in one to two per 1, live male births. Most can lead a normal, healthy life.


Eur J Hum Genet. The clinical presentation of this case must be distinguished from non-synostotic posterior plagiocephaly positional molding secondary to hypotonia or sleeping in the supine position during the early perinatal period because anterior and posterior coronal sutures are involved bilaterally edl.

Klinefelter syndrome

Thus far, only about 10 cases have been described in literature. D ICD – Archived from the original on 30 July Proceedings of the Laurentian Hormone Conference.

By adulthood, XXY males look similar to males without the condition, although they are often taller. As such, male cats with calico or tortoiseshell markings are a model organism for KS, because a color gene involved in cat tabby coloration is on the X chromosome. Some individuals have been reported with KS who also have other chromosome abnormalities, such as Down syndrome. Boy with 47,XXY,del 15 q J Epidemiol Community Health.

Considering the names of all three researchers, it is sometimes also called Klinefelter-Reifenstein-Albright syndrome. Retrieved from ” https: