Hello.
Venous angiomas are mostly benign. You do not need to worry. But if they start producing symptoms, treatment is mandatory.
Surgery is a good option. Now a days, some newer techniques such as the radio ablation of the angioma.
There may be residual problems. Please keep a close watch her symptoms.
Regards
I think most of the time they leave those alone. If memory serves, they are the most common abnormal finding in MRI/CT. Sometimes removing them causes more dmg than leaving them there.