Foster-Kennedy's syndrome

Overview said, the base of the frontal lobe syndrome. Cause pathogenesis bottom of the frontal lobe tumors or sphenoid ridge, olfactory groove meningioma optic side of the oppressed, so that the optic nerve around the subarachnoid occlusion caused primary optic atrophy without emerged as papilledema, However, the presence of tumor increased intracranial pressure, which appeared in the contralateral optic disk edema. Clinical manifestations lateral optic atrophy and Anosmia, the preoptic papilledema. Differential diagnosis (1) frontal lobe tumors (tumor of frontal lobe) frontal obviously rare tumor Neural signs, often in the early show mirrors the personality changes and psychiatric symptoms. Therefore easily misdiagnosed as primary dementia. Mental and physical activities with the slow inert situation very prominent, there is not necessarily smart recession, but its thinking is inhibited. Affective disorders in the early tumor was irritable and depressed, and became numb, indifferent, or even show silent catalepsy state. Early in Italy, there will be frequent and urine incontinence. Exploration of movement and strong grasp reflex prefrontal tumor is a common symptom. About half of patients developed systemic twitch. Emerging visual impairment and palilledema, indicates tumor was advanced optic pressure. At this time there are other symptoms of increased intracranial pressure. (2) olfactory and anterior cranial fossa meningioma (PEMs of genital groov e and anterior basocranial) were located at the end of the anterior cranial fossa. Clinical manifestations no significant difference between olfactory meningioma closer to the insides of olfactory nerve and optic see more symptoms that occurred earlier. Because patients often lose their sense of smell overlooked, often long-term tumor was found, clinical diagnosis has been a long, visual impairment is common symptoms, about 1 / 4 of the patients experienced Foster-Kennedy levy group, Tumor affect prefrontal function, psychiatric symptoms caused frontal lobe. CT can see the anterior cranial fossa high-density mass. (3) The sphenoid ridge meningiomas (sphenoidal creat PEMs) Fos ter-Kennedy's syndrome found in more-process-sphenoid ridge meningiomas. Sphenoid ridge in the end there are many within the structure, including the ipsilateral optic nerve, cavernous sinus and superior orbital fissure within the cranial nerves, the medial temporal lobe olfactory brain, such as cerebral peduncle. So this meningiomas focal symptoms more susceptible to early detection. Magic will have to hook olfactory or seizures, loss of the sense of smell, contralateral hemiplegia, unilateral exophthalmos and pituitary dysfunction appetite.