<prompt> Lateral medullary syndrome is associated withDissociative anaesthesiaDense hemianaesthesiaCrossed hemianesthesiaNo sensory defect  <response>: Lateral medullary syndrome is a neurological disorder causing a range of symptoms due to ischemia in the lateral pa of the medulla oblongata in the brainstem. The ischemia is a result of a blockage most commonly in the veebral aery or the posterior inferior cerebellar aery Ref Harrison20th edition pg 2334 