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Objective To investigate the corpus callosum infarction incidence, etiology, clinical manifestations, imaging features and prognosis of outcome. Recent years, clinical observation and retrospective detailed summary analysis - April 2010, April 2006 Provincial Hospital Affiliated to Anhui Medical University, 1609 cases of acute cerebral infarction diagnosed by MRI in 33 patients with acute infarction of the corpus callosum clinical and imaging data. Results ① disease incidence rate of 2.05% (33/1609); an average age of 62.5 ± 8.93 years; major risk factors for hypertension, hyperlipidemia, and diabetes. ② Clinical manifestations of hemiplegia (93.9%) is the most common, the high incidence of various parts of the corpus callosum infarction, the simple corpus callosum infarction are paresis, lower extremity involvement is common, not exactly the same as the degree of involvement of the upper and lower limbs are affected; followed by decline in cognitive function (57.6%), Furthermore, ataxia (45.5%), sensory disturbances (39.4%), language barriers (30.3%), mood disorders (30.3%); apraxia, agraphia, alien hand syndrome has specific , clinical rare, the typical alien hand syndrome is the most rare, only three cases (9.1%). ③ CT scan found that the corpus callosum infarction positive rate is low, MRI has a high sensitivity and specificity of the corpus callosum infarction. 33 patients with 42 lesions detected by MRI imaging infarction body (42.9%), pressure (35.7%) is more common, often involving the basal ganglia, centrum semiovale, brainstem, frontal occipital lobe, parietal lobe, temporal lobe and other parts. ④ 6 cases of patients with simple corpus callosum body infarction, 27 patients merger intracranial other parts of the infarction, merge the basal ganglia area (75.8%) up to see the 33 patients had unilateral corpus callosum infarction in patients 24 Li (24/33), significantly more than double side of the corpus callosum infarction patients (9/33), P lt; 0.05, 42 lesions in the left side of 14 (33.3%), the right side of 28 (66.7%), significantly more than on the right side of the left, P lt; 0.05. (5) the 15 patients to further the cerebral vascular angiography (MRA / CTA / the DSA), the anterior cerebral artery stenosis six cases, occlusion of three cases; pericallosal artery stenosis in 3 cases, occlusion of two cases; cerebral artery stenosis 1 cases, posterior cerebral artery stenosis cases, occlusion of the two cases; vascular morphology is normal in two cases. ⑥ combination of patient history, signs and imaging studies, corpus callosum infarction diagnosis is not difficult, Marchiafava-Bignami disease (MBD), multiple sclerosis (multiple sclerosis, MS) and other needs and usually involving the corpus callosum disease phase identification. ⑦ After treatment, simply corpus callosum infarction relatively good prognosis; limb motor function, 33 patients, 22 patients improved, 5 cases of deterioration, six cases no significant change; However, after two weeks of treatment, cognitive decline was no significant improved. Conclusion corpus callosum rich blood supply and a relatively low incidence of acute corpus callosum infarction complicated and diverse clinical manifestations, and the specificity of the corpus callosum transection syndrome easily conceal, should pay attention to the identification of cognitive decline and alien hand syndrome, cranial MRI on determining the corpus callosum infarction valuable in diagnosis, clinical prognosis is relatively good the simple corpus callosum infarction.
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