Is Parkes Weber syndrome inherited ?
Most cases of Parkes Weber syndrome occur in people with no history of the condition in their family. These cases are described as sporadic.  When Parkes Weber syndrome is caused by mutations in the RASA1 gene, it is sometimes inherited from an affected parent. In these cases, the condition has an autosomal dominant pattern of inheritance. Autosomal dominant inheritance means one copy of the altered gene in each cell is sufficient to cause the disorder.