In a patient with vascular risk factors and parkinsonism, obtain neuroimaging to assess for subcortical small vessel disease before attributing the syndrome to idiopathic PD. When essential tremor is the diagnosis, begin propranolol or primidone and set clear expectations: about half of patients achieve meaningful suppression, and severe refractory cases have a surgical pathway with documented ninety percent efficacy.

Action tremors are broken down into postural, kinetic, intention, and isometric tremors; Most likely driven by abnormal oscillatory activity within the Guillain-Mollaret triangle; Some notable clinical variants include an isolated voice tremor, task-specific tremor, primary writing tremor, and an isolated chin tremor; When essential tremor becomes severe, it can actually persist at rest and present asymmetrically; Most frequently driven by multiple lacunar infarcts or extensive, subcortical small vessel ischemic disease, which is clinically distinct from idiopathic Parkinson's