Congenital Hemangioma
Congenital hemangiomas are most often found on the skin of the head, neck or limbs, but can also occur on the trunk. Internally, they are most commonly found in the liver.
These tumors can be flat or appear as raised growths from the skin. They are red-purplish in color with overlying small blood vessels (telangiectasias) with a "halo" or lighter colored area surrounding them. Some CH have noticeable veins in or around the lesion.
There are different types of congenital hemangiomas:
Rapidly involuting congenital hemangiomas (RICH): These lesions begin to involute (disappear) soon after birth and continue to decrease in size during the first year of life. Most have significantly shrunk by 18 months of age. However, the majority of individuals with a RICH will have some residual skin changes.
Partially involuting congenital hemangioma (PICH): These lesions initially have a rapid decrease in size, typically within the first 12 months of life similar to RICH. Unlike RICH, the rate of involution (disappearing) decreases over time and the bulk of the lesion does not completely go away.
Non-involuting congenital hemangiomas (NICH): These lesions are fully developed at birth and do not involute or decrease in size over time.