Small cavernous hemangiomas can sometimes be eradicated by electrocoagulation, a procedure in which a local anesthetic is administered and then a hot electric probe is used to destroy the abnormal tissue. Sometimes, surgical removal is needed, especially when the increased blood flow of the cavernous hemangioma causes an arm or leg to enlarge. Spider Angiomas Spider angiomas are bright red areas that usually have a central reddish to purplish spot with slender projections resembling spider legs. Spider angiomas often occur in small numbers. People with cirrhosis of the liver often develop many spider angiomas, as do many women who are pregnant or who are using oral contraceptives.
Most lymphangiomas are yellowish-tan, but a few are reddish.
When injured or punctured, they release a colorless fluid. Although treatment isn't usually needed, lymphangiomas can be removed surgically. However, such surgery requires the removal of much dermal and subcutaneous tissue because lymphangiomas grow deep beneath the surface. The condition develops rapidly, usually after injury to the skin. Pyogenic granulomas may bleed easily because the skin covering them is often thin.