<prompt> Most common site of origin of pleomorphic adenoma is:Parotid glandSubmandibular salivary glandMinor salivary glands of soft and hard palateMinor salivary glands of lip  <response>: Pleomorphic adenoma most commonly arises from the parotid gland. Ninety per cent are located in the superficial lobe while 10 involve deep lobe and present as parapharyngeal tumours. 