The tumor appeared as a large, well-circumscribed echogenic mass in the right parieto-occipital area on US.
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Brain computed tomography scan showed high-density lesions in the left parieto-occipital area suggesting subcortical cerebral hemorrhage.
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In addition, he had a patch of white hair on the right parieto-occipital area overlying a scalp neurofibroma.
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RESULTS: As for deep white matter hyperintensity (DWMH), LOM exhibited higher ratings than EOM; as for brain areas, significant between-group differences were detected in the bilateral frontal areas and in the left parieto-occipital area. The frontal areas and the left parieto-occipital area would be important for the development of late-onset mood disorders..
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By contrast, mainly peripheral field representations of V4 are connected with occipitoparietal areas DP (dorsal prelunate area), VIP (ventral intraparietal area), LIP (lateral intraparietal area), PIP (posterior intraparietal area), parieto-occipital area, and MST (medial STS area), and parahippocampal area TF (cytoarchitectonic area TF on the parahippocampal gyrus).
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Retrogradely labeled cells were located within the arcopallium, the hyperpallium apicale (HA) and the temporo-parieto-occipital area (TPO).
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CASE REPORT: A young aphasic patient study is reported who, after a cerebral haemorrhagia in the left temporo-parieto-occipital area, shows significant semantic difficulties.
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We recorded neural activity from the medial parieto-occipital area V6A while three monkeys performed an instructed-delay reaching task in the dark.
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The cerebral cortex of three macaque monkeys, electrophysiologically studied in chronic preparations in order to recognize functionally the medial parieto-occipital area V6, was reconstructed using the software CARET. In particular, a comparison of the location and extent of the medial parieto-occipital areas V6 and PO indicates that area PO occupies different locations according to different authors but in general includes parts of both areas V6 and V6A.
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To determine the connectivity of CDL, and to distinguish CDL from the rostrally adjacent temporo-parieto-occipital area (TPO), injections of neural tracers were made into the caudal superficial pallium at various rostrocaudal levels.
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METHODS: A 17-year-old epilepsy patient underwent invasive monitoring with subdural electrodes in the right temporo-parieto-occipital area.
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Two separate tumors were operated on within six months: the first one was localized in the left parieto-occipital area, and the other in the right temporal lobe.
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Positive ERP waves were evoked by Targets and Non-targets in the parieto-occipital area around 300-700 ms after stimulus onset.
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The tumors were located in the posterior parieto-occipital area in six cases and the mean diameter of mass of these tumors was 5.3 cm.
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Focal lesions and progressing atrophy mainly of the basal ganglia and the temporo-parieto-occipital area with preservation of hippocampal and entorhinal structures were present.
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The strongest projections to PMd arise from the superior parietal lobule, including the medial intraparietal area (MIP), PEc and PGm, and the parieto-occipital area.
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The latter potentials were dominant in the parieto-occipital area.
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The patients were 15-year-old and 3-month-old girls, who each had a hard, nonpulsatile, nonreducible lump covered by alopecic scalp in the parieto-occipital area.
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The results show that parieto-occipital area V6A is reciprocally connected with F7, and receives a smaller projection from F2.
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The lesion was located in the deep sylvian fissure in one patient, the fronto-parieto-occipital area in one and the trigone in two.
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Her magnetic resonance imaging (MRI) showed an old cerebral infarction in the left parieto-occipital area, in addition to ischemic changes in the bilateral deep white matter.
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MRI identified a mass in the right parieto-occipital area.
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Radiologically, a leptomeningeal (pial) capillary and venous malformation, mostly located in the parieto-occipital area, cerebral atrophy and calcifications are demonstrated.
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These included the left occipitotemporal area, the right parieto-occipital area, and the right posterior frontal region.
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The short-echo-time MR spectrum acquired in the parieto-occipital area was characterised by global loss of signal and accumulation of lactate.
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In three cases the tumors were primary neoplasms arising from the sellar region, base of the occiput and the parieto-occipital area.
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Magnetic resonance imaging showed in one case parieto-occipital pachygyria and in the other there was marked pachygyria, most pronounced over the parieto-occipital area.
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The lesion located in the left parieto-occipital area was compatible with the field defect observed.
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Echodensities, especially in the parieto-occipital area, affected the quality of general movements.
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If the mean spectral theta amplitude across the parieto-occipital area decreases from IMC80 to IMC100 then the isometric contraction is taken to be performed with maximal effort; B.
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MRI showed wide T2-high signal lesions in the right temporo-parieto-occipital area.
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A power spectra corresponding to slow wave showed an increase at parieto-occipital area in 1st and 5th postoperative day.
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Alpha rhythm of the parieto-occipital area is comprised of a parade of short-lived cortical excitations (alphons), each of which exhibits oscillations having a stable period within the alpha bandwidth.
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SD was elicited on the frontal cortical surface by 1-min application of 2% KCl and its appearance was recorded (ECoG and DC potential) at two points in the parieto-occipital area of the same hemisphere.
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In the case reported on, critical reduction of regional cerebral blood flow (rCBF) was observed during re-build-up phenomenon in the bilateral parieto-occipital area where acetazolamide testing revealed severe impairment of the perfusion reserve.
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We found a projection to the dorsal premotor cortex from the parieto-occipital area (PO).
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Brain computed tomographic scan showed encephalomalacia in the right parieto-occipital area and recent hypodensity in the left temporoparieto-occipital area with cortical atrophy.
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The theta power across the parieto-occipital area decreases from rest through movements performed with submaximal force to movements performed with maximal effort.
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With respect to the SEPs on the right hemisphere, the only components remaining were the initial negativity (N20 with latency of about 20 msec) recorded in the parieto-occipital area, which exhibited polarity inversion across the central sulcus.
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Brain images showed atrophy and hypoperfusion in the parieto-occipital area.
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Computed tomographic scanning showed a single ring enhancing lesion in the right parieto-occipital area.
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CT scan disclosed hematoma in the right parieto-occipital area.
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Measurements of latencies of the nasalis muscle response, obtained while the stimulating coil was placed over the parieto-occipital area of the scalp, indicated that it was the labryinthine segment of the facial canal, 5 to 16 mm distal to the CPA, that was activated.
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The patient presented with a swelling in the right parieto-occipital area and paresis of the upper left limb; there was no clear history of trauma.
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CT of the brain demonstrated presence of an ischaemic focus in the temporo-parieto-occipital area.
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During seizures, EEG showed discharges in the parieto-occipital area in two cases and in the mid-temporal area in one.
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Density was moderate in the fronto-parieto-occipital area (female), on the loin and buttocks, in the upper costal, lower caudo-costal, xiphoid-umbilical and umbilical-pubic areas, and on the lateral surface of the forearm.
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CT disclosed an intracerebral hemorrhage in the right parieto-occipital area.
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The results include the following: Three positive potentials were associated with REM: a sharp potential in the parieto-occipital area just before REM onset; a large, slow potential in the vertex area 140-180 msec after REM onset; and a potential in the occipital area 210-280 msec after REM onset. Three positive potentials, one being the so-called EM-antecedent potential and the others being the lambda response, were associated with the waking saccades toward targets: a sharp potential in the parieto-occipital area just before the saccade onset and two potentials in the occipital area with latencies of 140-150 and 260-310 msec from the saccade onset.
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Striking, statistically significant, alterations were observed in the left temporo-parieto-occipital area (fig.
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Nine months later, a lymphoma of the left parieto-occipital area was discovered.
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With eyes closed the dominant activity in the parieto-occipital area showed an increase from 7.7 to 8.5 Hz. The amplitude of 40-50 microV in the parieto-occipital areas was higher than in the frontal and temporal areas (25-30 microV).
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In CT scan findings, separate mass lesions were observed in the right parieto-occipital area, left parietal lobe and left thalamic region.
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A emergency CT scan revealed a round high density area suggesting intracerebral hematoma at the right parieto-occipital area.
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In the second experiment, an impact of 9000 gm-cm was delivered to the midline parieto-occipital area of the rat and produced concussion-like phenomena similar to those elicited in mice.
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It was corrected successfully by a free bone graft to the outer table from the parieto-occipital area, partly covered by a flap of periosteum from the same area..
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We discuss the following points: 1) the patient's disease must be considered as Binswanger's subcortical encephalopathy despite the asymetric topography of the lesions ; 2) particular hemodynamic cerebral factors has possibly determined the asymetric nature of the disease ; 3) a lesion of the left temporo-parieto-occipital area that was strictly sub-cortical, with complete destruction of the posterior part of the arcuate fasciculus has presented with the clinical picture of a transcortical sensorial aphasia..
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An amplitude hypovariability in the central regions, probably associated with hyperarousal, especially in the left hemisphere, can then be observed in hebephrenics, together with high alpha intensity on the left parieto-occipital area.
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These results suggest that the posterior parieto-occipital area is involved in making associations across dimensions with in the visual modality.
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Some years later, she sustained a subarachnoid hemorrhage from an arteriovenous malformation in the right parieto-occipital area, which was successfully excised.
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Reaction to a complex visual stimulus, characterized by differences of EP to fase and checker-board patterns, had maximal manifestation in the temporo-parieto-occipital area.
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EEG showed paroxysmal slowing focus in the right parieto-occipital area.
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The EEG during wakefulness and sleep showed multifocal independent spikes over the left mid-temporal and right parieto-occipital area.
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The autor came to the following conclusions: 1--there is a clear correlation between the electroenecephalographic abnormalities and the degree of cerebral injury characterized by the duration of unconsciousness, presence of localizing neurological signs, presence of bloody cerebrospinal fluid and post-traumatic epilepsy; 2 - slow wave activity over the parieto-occipital area is more frequent in the age group up to 10 years; 3 - the proportion of abnormal electroencephalograms decreases particularly after the 1st month post-trauma; 4 - diffuse or focal slow activity decreased principally after the 1st month post-trauma; 5 - paroxysmal abnormalities increase proportionaly after the 6th month post-trauma; 6 - patients with intracranial hematoma present great proportion of abnormalities, particularly depressions.
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