Hemangioma of the parotid.

Thompson LD.
Ear Nose Throat J. 2002 Nov;81(11):769.
FIRST PARAGRAPH: Hemangiomas are benign tumors of endothelial cell origin (benign hemangioendotheliomas). They are the most common salivary gland tumor in children younger than 1 year of age, accounting for 90% of cases. Hemangiomas in adults are uncommon. The characteristic features of hemangiomas are the rapid enlargement of a unilateral (usually on the left), compressible, bluish mass shortly after birth, particularly in girls. Hemangiomas are not associated with any syndrome.
PubMed ID: 12472029
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