Epidemiology
A rare perivascular tumor of adults, usually located superficially in the limbs. It is usually superficial and well defined, but its relationship to small vessels explains its vascular appearance on imaging.
Basic features
It presents as a small, sometimes painful nodule, with vascular enhancement on imaging.
Usual treatment
Local resection is the usual approach when there are symptoms or diagnostic uncertainty.
Outcomes and prognosis
Most cases behave in a benign way; recurrence and malignancy are exceptional.