"Enlargement of the parotid gland(s) and enlargement of cervical lymphadenopathy seem to be typical 2 and may be observed clinically and by various imaging modalities."
"The exact prevalence is unknown, as only isolated case reports exist. Neurologic involvement may occur in ~5% of patients with sarcoidosis, with facial nerve palsy dominating 2-4. Interestingly, rarity sections hold a case with the subsequent development of progressive multifocal leukoencephalopathy PML 3."