Bottles K, Ferrell L D, Miller T R
Acta Cytol. 1984 Jul-Aug;28(4):490-2.
Tyrosine crystals were identified in the fine needle aspirate from a pleomorphic adenoma of the parotid gland. Such crystals have been seen before in tissue sections of pleomorphic adenomas, and they should be considered supportive evidence for a diagnosis of pleomorphic adenoma.