Probability of renal hamartoma self-healing

Renal angiomyolipoma is

a benign tumor composed of smooth muscle, fat, and abnormal blood vessels in varying proportions. If the patient does not take any treatment, the renal angiomyolipoma cannot disappear on its own, so the probability of self-healing is 0. If the

diameter of renal angiomyolipoma is 4 cm, the tumor can be surgically removed.