vermian cerebellar atrophycortical and cerebellar atrophyunilateral cerebellar atrophycerebellar hemisphere atrophycerebral and cerebellar atrophycongenital cerebellar atrophyhereditary cerebellar atrophysuperior cerebellar atrophyisolated cerebellar atrophymoderate cerebellar atrophysevere cerebellar atrophybilateral cerebellar atrophy