Classification of Vascular Tumors

Vascular tumors may be classified as follows:

Benign Tumors

Hemangiomas
Capillary hemangioma
Cavernous hemangioma
Pyogenic granuloma

Lymphangioma
Simple (capillary) lymphangioma
Cavernous lymphangioma (cystic hygroma)

Glomus Tumors

Vascular Ectasias
Nevus flammeus
Spider telangiectasia (arterial spider)
Hereditary hemorrhagic telangiectasia (Osler Weber Rendu disease)

Reactive Vascular Proliferations
Bacillary angiomatosis

Intermediate Grade Tumors

Kaposci sarcoma
Hemangioendothelioma

Malignant Tumors

Angiosarcoma
Hemangiopericytoma

Image: Kaposci sarcoma, courtesy of M. Sand, D. Sand, C. Thrandorf, V. Paech, P. Altmeyer, F. G. Bechara