Vascular Anomalies (birthmarks) are seen in well
above half of the population.
skin discolorations are very common in newborns and
do not require diagnostic testing or treatment.
Hemangiomas, which usually occur during
infancy and gradually disappear in the first few
years of life, are also common lesions (benign
tumors that are found in ~10% of the infant
population). Other types of hemangiomas or tumoral
birthmarks such as Rapidly
Involuting Congenital Hemangiomas (RICH),
non-involuting hemangiomas or intramuscular
hemangiomas are less common.
malformations (VMs) (or commonly and erroneously
called "cavernous hemangiomas") are also
common lesions (found in nearly 30-50% of the
population), which are usually not symptomatic and
therefore do not require treatment. Also, liver
hemangiomas and bone hemangiomas are actually
venous malformations, and these congenital
birthmarks are very common. Small percentage of these patients require treatment
due to persistent discomfort and pain.
stains (capillary malformations) are also common
birthmarks and generally do not require additional
diagnostic testing or treatment.
malformations (AVMs) are not very common
lesions, but require intense medical care in most
vascular anomalies including lymphatic malformations
and combined anomalies (Klippel-Trenaunay syndrome,
Parkes-Weber syndrome, Proteus
syndrome, Maffucci, etc.) are less