Hemangioma of the Skin

Excessive numbers of vessels resulting from a clonal proliferation of endothelial cells without significant invasion or metastasis.

Tumor composed of endothelial or spindle cells in vascular patterns. Positive factor VIII

A hemangioma arising from the brain and spinal cord.

A hemangioma arising from the peripheral nerves.

A benign vascular neoplasm characterized by the formation of capillary-sized or cavernous vascular channels.

A vascular proliferation characterized by the presence of prominent endothelial cells and the formation of vascular channels. Hemangioendotheliomas may display borderline or…