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{{Hunter syndrome}}
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==Overview==
A definitive diagnosis of Hunter syndrome is made by measuring I2S activity in [[serum]], [[white blood cell]]s, or [[fibroblast]]s from skin [[biopsy]]. In some people with Hunter syndrome, analysis of the I2S gene can determine clinical severity. [[Prenatal]] diagnosis is routinely available by measuring I2S enzymatic activity in [[amniotic fluid]] or in chorionic villus tissue.


==Laboratory Findings==
==Laboratory Findings==
The visible signs and symptoms of Hunter syndrome (MPS II) in younger people are usually the first clues leading to a diagnosis. In general, the time of diagnosis usually occurs from about 2 to 4 years of age. Doctors may use laboratory tests to provide additional evidence that an MPS disorder is present, before making a definitive diagnosis by measuring the iduronate-2-sulfatase (I2S) enzyme activity. The most commonly used laboratory screening test for an MPS disorder is a [[urine test]] for GAG. It is important to note that the urine test for GAG can occasionally be normal and yet the child still may have an MPS disorder. A definitive diagnosis of Hunter syndrome is made by measuring I2S activity in [[serum]], [[white blood cell]]s, or [[fibroblast]]s from skin [[biopsy]]. In some people with Hunter syndrome, analysis of the I2S gene can determine clinical severity. [[Prenatal]] diagnosis is routinely available by measuring I2S enzymatic activity in [[amniotic fluid]] or in chorionic villus tissue.


==References==
==References==
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[[Category:Needs content]]
[[Category:Cardiology]]
[[Category:Disease]]
[[Category:Disease]]
[[Category:Hepatology]]
[[Category:Gastroenterology]]
[[Category:Gastroenterology]]
[[Category:Pediatrics]]
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Latest revision as of 14:15, 19 July 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

A definitive diagnosis of Hunter syndrome is made by measuring I2S activity in serum, white blood cells, or fibroblasts from skin biopsy. In some people with Hunter syndrome, analysis of the I2S gene can determine clinical severity. Prenatal diagnosis is routinely available by measuring I2S enzymatic activity in amniotic fluid or in chorionic villus tissue.

Laboratory Findings

References

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