Vascular anomalies

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Hannan Javed, M.D.[2], Anmol Pitliya, M.B.B.S. M.D.[3]

Classification

Classification of Vascular Tumors

Vascular tumors

Benign

Locally aggressive or borderline

Malignant

Infantile hemangioma / Hemangioma of infancy

Kaposiform hemangioendothelioma*

Angiosarcoma

Congenital hemangioma*

Retiform hemangioendothelioma

Epithelioid hemangioendothelioma

Tufted angioma*

Papillary intralymphatic angioendothelioma (PILA), Dabska tumor

Others

Spindle-cell hemangioma

Composite hemangioendothelioma

Epithelioid hemangioma

Pseudomyogenic hemangioendothelioma

Pyogenic granuloma (also known as lobular capillary hemangioma)

Polymorphous hemangioendothelioma

Others • Microvenular hemangioma • Anastomosing hemangioma • Glomeruloid hemangioma • Papillary hemangioma • Intravascular papillary endothelial hyperplasia • Cutaneous epithelioid angiomatous nodule • Acquired elastotic hemangioma • Littoral cell hemangioma of the spleen

Hemangioendothelioma not otherwise specified

' Related lesions • Eccrine angiomatous hamartoma • Reactive angioendotheliomatosis • Bacillary angiomatosis

Kaposi sarcoma

Others

^*congenital hemangioma (rapidly involuting type) and tufted angioma may be associated with thrombocytopenia and/or consumptive coagulopathy in some cases. Many experts consider tufted angioma and kaposiform hemangioendothelioma to be part of a spectrum rather than distinct entities