A new abnormal growth or tumor that originates from blood vessel tissue.
From Greek 'angeion' (vessel) + 'neo' (new) + 'plasma' (growth/tumor). This medical term specifically identifies vascular tumors, distinguishing them from neoplasms of other tissue origins.
Hemangiomas (common birthmark tumors) are technically angineoplasms—abnormal new growths that start from blood vessel cells instead of skin or nerve cells.
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