title: Tyrosine crystals in fine needle aspirates of a pleomorphic adenoma of the parotid gland.
abstract: 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.
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis*; D000368:Aged; D001707:Biopsy, Needle; D003460:Crystallization; D006801:Humans; D008297:Male; D010307:Parotid Neoplasms / Q000175:diagnosis*; D014443:Tyrosine / Q000032:analysis*
chemical_list: D014443:Tyrosine