1/5. Alexia without agraphia following biopsy of a left thalamic tumor.Alexia without agraphia is a rare disconnection syndrome characterized by the loss of reading ability with retention of writing and verbal comprehension. We report a patient who developed alexia without agraphia after undergoing a biopsy for a malignant glioma involving the left thalamus. A 15-year-old right-handed male presented with 3 days of severe headache, and vomiting, and 1 month of blurry vision in his right visual field. magnetic resonance imaging of the brain disclosed a large exophytic mass originating in the left thalamus, with mass effect and hydrocephalus. The patient underwent biopsy of the left thalamic mass via a transcallosal approach. Postoperatively, the patient complained of inability to read or identify letters. Examination revealed alexia without agraphia. The syndrome of alexia without agraphia can be rarely caused after surgery. A transcallosal procedure through the splenium of the corpus callosum may disrupt the visual association fibers traveling from the right occipital cortex to the left angular gyrus. In our case the syndrome occurred because of a preexisting right homonymous hemianopia resulting from a left thalamic tumor.- - - - - - - - - - ranking = 1keywords = agraphia (Clic here for more details about this article) |
2/5. Alexia without agraphia in a postpartum eclamptic patient with factor v Leiden deficiency.We present a case of eclampsia complicated by alexia without agraphia. To our knowledge, this syndrome has never before been described in the literature.- - - - - - - - - - ranking = 0.625keywords = agraphia (Clic here for more details about this article) |
3/5. Transitory alexia without agraphia: a disconnection syndrome due to neurocysticercosis.We describe a 65-year-old male who presented with acute onset inability to read, without any difficulty in writing. A clinical diagnosis of alexia without agraphia was made and the patient was subjected to routine investigations including contrast MRI. MRI showed a ring-enhancing lesion in left occipital area, suggestive of neurocysticercosis supported by quantitative enzyme-linked immunosorbant assay from purified cell fraction of taenia solium cysticerci (PCF-ELISA). Patient was treated with albendazole and prednisolone for one week. The clinical manifestation as well as the radiological finding resolved after treatment.- - - - - - - - - - ranking = 0.625keywords = agraphia (Clic here for more details about this article) |
4/5. Alexia without agraphia in multiple sclerosis: case report with magnetic resonance imaging localization.The syndrome of alexia without agraphia occurs rarely in multiple sclerosis (MS). We report a patient with right homonymous hemianopsia and alexia without agraphia as his initial manifestations of relapsing-remitting MS. magnetic resonance imaging (MRI) demonstrated a hyperintense lesion in the left occipital subcortical white matter (WM) and an enhancing lesion in the splenium of the corpus callosum. The clinical presentation and MRI findings were consistent with disconnection of the functional right occipital visual cortex from structures responsible for language comprehension in the left hemisphere. The diagnosis of MS was confirmed by subsequent development of additional periventricular WM lesions.- - - - - - - - - - ranking = 0.75keywords = agraphia (Clic here for more details about this article) |
5/5. Alexia without agraphia following cerebral venous thrombosis associated with protein c and protein s deficiency.A 26-year-old right handed female was admitted to hospital with right homonymous hemianopia associated with alexia without agraphia. Her cranial magnetic resonance imaging and magnetic resonance angiography revealed a left occipital venous infarction due to thrombosis of the left transverse, sigmoid sinuses and the left internal jugulary vein. The underlying conditions were protein c and protein s deficiency associated with the use of oral contraceptives. To our knowledge, alexia without agraphia has never been described due to a venous infarction associated with hereditary thrombophilia in the literature.- - - - - - - - - - ranking = 0.75keywords = agraphia (Clic here for more details about this article) |