<prompt> What diameter of cerebellar hematoma will require surgical evacuation0.5 cm1 cm2 cm3 cm  <response>: Most cerebellar hematomas 3 cm in diameter will require surgical evacuation. If the patient is ale without focal brainstem signs and if the hematoma is 1 cm in diameter, surgical removal is usually unnecessary. Patients with hematomas between 1 and 3 cm require careful observation for signs of impaired consciousness, progressive hydrocephalus, and precipitous respiratory failure.Reference: Harrison 19th edition 2585 