Answer
Answer 20-2. There are several signs that localize tumors:
Cortical signs - aphasia, hemiparesis, hemianopsia/quadrantanopsia, sensory loss, parietal lobe symptoms (neglect, agnosia), frontal lobe signs (dysinhibition, apathy personality change)
Cerebellar - incoordination, ataxia
Lateral brain stem - unilateral loss of pin and temperature sense on face
Brain stem - cranial nerve palsy
Loss of upgaze - dorsal brain stem, pineal region
Bitemporal hemianosia - pituitary region
Spinal cord - saddle anesthesia, paraplegia, sphincter dysfunction