Hemangioendothelioma (HE) is the name for a composite group of vascular cancers, which can involve soft tissue, bone, skin, liver, lymph node and/or lung.

Hemangioendotheliomas are of intermediate malignancy (between benign hemangiomas and conventional angiosarcomas). Vascular cancers (ie, cancers pertaining to vessels, particularly blood vessels) are very rare, accounting for only a fraction of 1% of all cancers.

Indolent (lazy, inconsistent) and/or slow tumor growth is common with hemangioendothelioma. Some cases have have been known to go into remission of their own accord, however - some tumors can recur locally and have a destructive behavior.

The word Hemangioendothelioma can be broken down accordingly:

Hem  - blood
Angio -  blood vessel
Endotheli - the inside surface
Oma - growth

Due to its rarity, it is preferable for patients to seek a sarcoma specialist for the treatment of hemangioendothelioma.

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