Important
General DiscussionHanhart syndrome is a rare birth defect in which the most obvious signs are a short, incompletely developed tongue (hypoglossia); absent or partially missing fingers and/or toes (hypodactylia); malformed arms and/or legs (peromelia); and an extremely small jaw (micrognathia). A more complete list of other signs frequently encountered may be found below. The severity of these physical abnormalities varies greatly from case to case. Children with this disorder often have some, but not all, of the symptoms. The cause of Hanhart syndrome is not fully understood. Supporting OrganizationsFACES: The National Craniofacial Association
Genetic and Rare Diseases (GARD) Information Center
For a Complete ReportThis is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
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