A genetic analysis may be helpful in making a Marfan syndrome diagnosis. However, a genetic analysis is often time-consuming and may not provide any additional information.
Family members of patients with Marfan syndrome should not assume that they have the disease if there is no knowledge that the disorder existed in previous generations. After a clinical diagnosis of a family member has been made, a genetic study can help determine if other family members are affected. (Click Genetic Testing for Marfan Syndrome for more information about genetic analysis.)
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