What is the chance a retinal cavernous hemangioma is acquired in early childhood versus congenital?

Probably congenital: Retinal cavernous hemangioma is a benign retinal vascular tumor that is believed to be congenital and inherited (autosomal dominant). These lesions can be associated with similar central nervous system vascular anomalies, as well as skin vascular malformations. There are usually not symptomatic or progressive, and are probably most often found incidentally during a routine eye exam.