Hemiparesis ipsilateral to a cerebral lesion can be a false localizing sign. This is due to midline shift of the midbrain resulting in compression of the contralateral pyramidal fibers on the tough dural reflection tentorium cerebelli. This may result in partial or complete damage to these fibers. Since these fibers are destined to cross in the medulla and innervate the opposite side of the bod...

Hemiparesis may be the result of lesions in the contralateral pyramidal tract in the brain or, less frequently, in the ipsilateral pyramidal tract in the upper cervical spinal cord. However, although rare, multiple lesions that simultaneously occur in both of these regions may be the cause of acute hemiparesis, and the clinical symptoms can often be misdiagnosed as a stroke. In addition, the co...

A 21-year-old woman, without significant medical history, acutely developed a left hemiparesis with left hypoesthesia. Three days earlier she had complained of itching with nettle rash, headache, and fever (38°C). A noncontrast computed tomographic (CT) scan (Fig 1A) revealed a right MCA infarct. Cerebral angiography showed an abrupt cutoff of the right proximal Ml segment, which was compatible...

Mechanisms of post-stroke recovery are still poorly understood. Recent evidence suggests that cortical reorganisation in the unaffected hemisphere plays an important role. A 59 year old man developed a small lacunar infarct in the left corona radiata, which then caused marked deterioration in a pre-existing left hemiparesis that had resulted from an earlier right putaminal haemorrhage. Function...

BACKGROUND Postural control is often impaired in hemiparetic patients. During upright stance, hemiparetic subjects sway more than subjects with an unaffected hemibody, and they assume asymmetrical postures to place less weight on the affected side. OBJECTIVE To analyze functional reach and dependence on support devices among people with chronic hemiparesis and to investigate the relationships...

A 49-year-old man with meningeal cysticercosis presented with a pure motor hemiparesis. Computed tomography and magnetic resonance imaging showed a capsular infarction and a suprasellar cyst with surrounding arachnoiditis. Cerebrospinal fluid analysis confirmed the diagnosis as it showed positive immunologic reactions to cysticerci. This is the first reported case of pure motor hemiparesis due ...

The intact omentum of 13 monkeys was lengthened, placed subcutaneously, and laid on the left cerebral hemisphere prior to occluding the left middle cerebral artery. Two of these 13 monkeys developed left cerebral infarct and a right hemiparesis. Nine other monkeys had their left middle cerebral artery occluded without omental protection. All of these 9 developed a left cerebral infarct and 8 of...

Case Report A 56-year-old right-handed woman was admitted because of worsening of a right-sided hemiparesis and dysphasia for 20 days. Vascular risk factors were smoking (40 pack-years) and a family history of cerebrovascular diseases. Neurological examination showed decreased spontaneous movement, expressive dysphasia, a right-sided hemiparesis and a left-sided arm paresis (MRC scale: 3+/5). D...

An 85-year-old female was found in coma state in a toilet at a public spa area. Her Glasgow Coma Scale in total was 6 and she had isocoric reactive pupil. She had right hemiparesis. The CT examination demonstrated a subarachnoid hemorrhage. Especially subarahnoid hemorrhage at left silvian fissure was thicker than that of right, but no formation of hematoma. The CT angiography revealed a cerebr...