Although the appearance of both vascular tumors and vascular malformations can resemble, there are important differences between both.

Infantile hemangioma is the most common vascular tumor.

In contrast to vascular tumors, vascular malformations do not have a growth phase, nor an involution phase.

They are highly vascular tumors and may have a deep red color.

These new treatments are based on the fact that renal cell carcinomas are very vascular tumors - they contain a large number of blood vessels.

Lymphangiomas are rare, accounting for 4% of all vascular tumors in children.

The hemangioma is a common type of vascular tumor which may occur early in life and resemble a birthmark.

KMS is usually caused by a hemangioendothelioma or other vascular tumor, often present at birth.

The combination of vascular tumor and consumptive thrombocytopenia defines KMS.

Generally, treatment of the underlying vascular tumor results in resolution of KMS.