Table 1.

Comparative feature of vascular lesion [23]

S. no	Hemangioma	Vascular malformation
1.	Present at birth; most diagnosed by 1 year of age	Present at birth but often not diagnosed until second decade
2.	Rapid growth until age 6–8 month then slows and involutes by 5–9 years	Slow growth with increase in size in response to infection, trauma, or hormonal fluctuation; does not involute
3.	Neoplastic growth with increased endothelial cell turnover	Growth due to flow dynamics through the lesion and recruitment of collateral supply
4.	Osseous involvement rare female–male ratio 5:1 usually low flow	Osseous involvement 35% female–male ratio 2:1 may be low flow (capillary, venous, lymphatic or high flow arterial or arteriovenous)
5.	Frequently does not need treatment	Often requires treatment