UNILATERAL SPATIAL NEGLECT DUE TO A HEMORRHAGIC CONTUSION IN THE RIGHT FRONTAL-LOBE

We report two cases of unilateral spatial neglect associated with an i solated right frontal lobe lesion. Case 1 was a 59-year-old, right-han ded man, who developed a left hemiplegia, disorientation, and frontal lobe neglect associated with a haemorrhagic contusion following a head injury. Case 2 was a 55-year-old, right-handed man, who also develope d disorientation and frontal lobe neglect secondary to a haemorrhagic contusion following a head injury, Tc-99m HM-PAO SPECT revealed an iso lated reduction in the regional cerebral blood flow (CBF) around the h aematoma in the frontal lobe; blood flow to remaining parts of the bra in was normal. Damage to the right frontal lobes of these patients was confirmed as being the cause of the unilateral spatial neglect in acc ordance with the results of CBF studies.