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Capillary malformation-arteriovenous malformation
This syndrome is characterised by the association of multiple capillary malformations (CM) with an arteriovenous malformation (AVM) and arteriovenous fistulas.
ORPHA:137667
So far, it has been described in multiple members of six families.
The CMs are atypical: they are small, round-to-oval in shape and pink-red in colour. AVMs may be cutaneous, subcutaneous, intramuscular, intraosseous or cerebral. The association of CM with arteriovenous fistulas or Parkes-Weber syndrome was reported in some cases.
The syndrome is caused by heterozygous mutations in the RASA1 gene (5q13.3), encoding RAS p21 protein activator 1.
Last update: April 2008
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: produced/endorsed by FSMR(s)
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