Asymptomatic Skeletal Cystic Angiomatosis May Be Managed Conservatively With Close Observation

Cystic angiomatosis (CA) is a rare disease characterized by the proliferation of vascular and lymphatic channels lined by a single layer of endothelial cells. CA may present with isolated skeletal or visceral disease. There is no consensus for the standard of care in these patients, and diverse regimens for CA have been reported, including observation, surgery, radiation, and a variety of medical therapies. We present a case of multifocal, isolated skeletal CA, treated with close observation alone and review the literature. We suggest that these cases may be safely followed without intervention and may be stable for prolonged periods of time.