Question
A child has a cavernous hemangioma with a diameter of 3 to 4 centimeters under the skin. They have previously undergone four local urea injections for treatment. Currently, the tumor has hardened after stopping treatment, but there has been no significant shrinkage. Is this treatment effective? Can it be cured?
Answer
Cavernous hemangiomas are essentially venous malformations, which are subcutaneous lesions composed of blood-filled sinusoids and thin-walled veins, appearing as dark red or bluish purple spots. They come in various sizes and shapes. For relatively stable congenital venous malformations, aesthetic treatment should be the principle, especially for tumors in exposed areas, where minimally invasive treatment should be chosen as much as possible.