Alexia without agraphia: from infarctions to malignancies.

IF 2.4 Q2 CLINICAL NEUROLOGY PRACTICAL NEUROLOGY Pub Date : 2024-09-23 DOI:10.1136/pn-2024-004235
Ruben Jauregui, Julia Greenberg, Philip Kuball, Dillan J Newbold, Riddhi Patel, Robert Staudinger
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Abstract

Alexia without agraphia is a neurological syndrome characterised by an acquired inability to read with a preserved ability to write. It is caused by the combined effect of two lesions: in the splenium of the corpus callosum and in the occipital lobe of the dominant hemisphere. Splenial lesions disconnect the language areas in the temporal and parietal lobes of the dominant hemisphere from the visual areas in the occipital cortex of the contralateral side, while lesions in the dominant occipital lobe cause homonymous hemianopia. We describe two patients with lesions affecting the splenium and dominant occipital lobe, with different causes. Together, these cases highlight the importance of performing a thorough language evaluation in patients presenting with homonymous visual field deficits, as otherwise, clinicians may overlook impairments in writing (agraphia) or reading (alexia).

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无书写障碍的 Alexia:从脑梗塞到恶性肿瘤。
无书写障碍性阅读障碍是一种神经系统综合症,其特征是后天丧失阅读能力,但书写能力得以保留。它是由胼胝体的脾脏和优势半球的枕叶这两种病变共同造成的。脾脏病变会使优势半球颞叶和顶叶的语言区与对侧枕叶皮层的视觉区分离,而优势半球枕叶的病变则会导致同向偏盲。我们描述了两名病变影响脾叶和显性枕叶的患者,他们的病因各不相同。这些病例共同强调了对出现同侧视野缺损的患者进行全面语言评估的重要性,否则临床医生可能会忽视患者在书写(书写障碍)或阅读(阅读障碍)方面的障碍。
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来源期刊
PRACTICAL NEUROLOGY
PRACTICAL NEUROLOGY Medicine-Neurology (clinical)
CiteScore
3.70
自引率
3.60%
发文量
113
期刊介绍: The essential point of Practical Neurology is that it is practical in the sense of being useful for everyone who sees neurological patients and who wants to keep up to date, and safe, in managing them. In other words this is a journal for jobbing neurologists - which most of us are for at least part of our time - who plough through the tension headaches and funny turns week in and week out. Primary research literature potentially relevant to routine clinical practice is far too much for any neurologist to read, let alone understand, critically appraise and assimilate. Therefore, if research is to influence clinical practice appropriately and quickly it has to be digested and provided to neurologists in an informative and convenient way.
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