Schnider A, Landis T, Regard M
Department of Neurology, University Hospital, Zürich, Switzerland.
J Neurol Neurosurg Psychiatry. 1991 Sep;54(9):822-5. doi: 10.1136/jnnp.54.9.822.
A 45 year old patient with AIDS is described in whom Balint's syndrome developed over several days without other higher cognitive defects. Radiological findings were typical of subacute HIV encephalitis involving mainly the white matter of the occipital lobes with extension into the parietal and temporal lobe on the left side and into the temporal lobe on the right side. While the patient could usually recognise only one single component within her visual field, her performance in reading much improved if she was allowed to observe the examiner writing. This finding is attributed to well preserved movement perception in our patient, which may have helped her in directing her visual attention. The preservation of movement perception despite damage to the lateral temporo-occipital area may be due to the distinct pathology of subacute HIV encephalitis, which leaves the cortex and adjacent subcortical white matter virtually intact and therefore allows information transfer between primary visual areas in the occipital lobe and movement specific areas in the lateral temporo-occipital area through U-fibres.
本文描述了一名45岁的艾滋病患者，其在数天内出现了巴林特综合征，且无其他高级认知缺陷。影像学检查结果典型，符合亚急性HIV脑炎，主要累及枕叶白质，并延伸至左侧顶叶和颞叶以及右侧颞叶。虽然该患者通常只能识别视野内的单一元素，但如果允许她观察检查者书写，其阅读能力会有很大改善。这一发现归因于该患者运动感知功能保存良好，这可能有助于她引导视觉注意力。尽管外侧颞枕区受损，但运动感知功能仍得以保留，这可能是由于亚急性HIV脑炎独特的病理特征，即皮质和相邻的皮质下白质几乎未受影响，因此枕叶的初级视觉区域与外侧颞枕区的运动特定区域之间能够通过U形纤维进行信息传递。
