<prompt> A patient presented with weakness of the right side of the face with loss of pain and temperature , Pain and temperature sensation of the left leg is lost The lesion is most likely locatedlateral pomsmedial ponslateral medullaMedial medulla  <response>: RULE OF 4 weakness of face palsy of facial muscles of7th nerve affected same side7th NERVE from PONS Loss of pain, temperature from force Trigeminal Nerve affectedLesion in lateral side and ipsilateral Loss of pain , temperature in body UL, LLspinothalamic tract affected Lesion in CL side and also lateral side REF: BD CHAURASIA 