Source:http://linkedlifedata.com/resource/umls/id/C0279738
NCI: A carcinoma of the salivary gland characterized by serous acinar cell differentiation. The vast majority of cases occur in the parotid gland. It usually presents as a slowly enlarging mass. A minority of patients experience pain. It may recur or metastasize. Multiple recurrences and metastasis to cervical lymph nodes are usually associated with a poor prognosis.