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We reported a very rare case of an epidural hematoma soon after nose blowing. A 22-year-old male visited our hospital complaining of severe headache and nausea soon after he blew his nose. Thirteen years ago, he had a ventriculo-peritoneal (V-P) shunt operation for a pineal region tumor which had not recurred after irradiation. His left auditory tube had been patent. He hit his head about 3 months ago. On his arrival, his consciousness was almost clear but we observed slight right hemiparesis. Computed tomography of his head obtained on the first day showed the air in the hematoma in the left parietal epidural space which penetrated his petrosal bone from the mastoid air cells. Removal of his epidural hematoma was performed the next day and there was no abnormality of his parietal bone, dura and meningeal arteries. We supposed that nose blowing was what triggered his epidural hematoma. From pressure of nose blowing, the air of his nasopharyngeal space passed through his patent auditory tube into the tympanic cavity, and entered into the epidural space penetrating a microfracture or dissociation in the petrosal bone. In addition to this, V-P shunt system and the looser adhesion of dura to the skull in the young promoted entrance of air. Associated with formation of epidural hematoma in this case were four factors, "patency of auditory tube", "defect or microfracture of petrosal bone", "V-P shunt", "younger age" and triggered by nose blowing.
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PMID:[An acute epidural hematoma soon after nose blowing: a case report]. 763 49

We report a 78-year old woman with 30 years history of rheumatoid arthritis and nephrotic syndrome, who developed right hemiparesis and renal failure recently. The patient was diagnosed as having rheumatoid arthritis in 1965, and had been treated with gold -sol, steroid hormone, and non-steroidal anti-inflammatory drugs intermittently. Later on her clinical course was complicated by nephrotic syndrome, however, her renal function was well compensated. Otherwise, she was apparently doing well until October of 1988 when she had an onset of anomic aphasia; she was 73-year-old at that time. She was admitted to our hospital; a cranial CT scan at that time revealed a low density area in the left temporal region, and she was diagnosed as suffered from an atherothrombotic infarction involving the left middle cerebral artery territory. She recovered soon and was discharged for out patient follow up with ticlopidine 100 mg/day. She was doing well until December 15, 1990, when she had an acute onset of nausea, vomiting, and speech disturbance; she was admitted to our hospital for the second time. On admission, she was alert, but she had motor aphasia, right hemiparesis, and dysarthria. A cranial CT scan revealed a low density area in the left temporal region extending into adjacent frontal and parietal areas including the angular gyrus; in addition, leukoaraiosis, cortical atrophy, and ventricular dilatation were noted (Fig. 1A, B). She was treated supportively, and she showed improvement in her aphasia, however, moderate weakness remained in her right upper and lower extremities. She was discharged for out patient follow up. She was doing well until May 21, 1993, when she developed difficulty in swallowing and speech. She became unable to take foods orally and she was admitted again on May 31. On admission, she was afebrile and BP was 120/80 mmHg. General physical examination was unremarkable except for pitting edema and multiple contracture of her joints. On neurologic examination, she was alert but appeared to have aphasia and dementia; she could utter only a few simple words, and was able to understand only simple questions.(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:[A 78-year-old woman with rheumatoid arthritis, right hemiparesis, and renal failure]. 789 38

An unusual case of peritumoral hemorrhage after radiosurgery for the treatment of metastatic brain tumor is reported. This 64-year-old woman had a history of breast cancer and underwent right mastectomy in 1989. She remained well until January 1993, when she started to have headache, nausea and speech disturbance, and was hospitalized on February 25, 1993. Neurological examination disclosed right hemiparesis and bilateral papilledema. CT scan and MR imaging showed a solitary round mass lesion in the left basal ganglia region. It was a well-demarcated, highly enhanced mass, 37mm in diameter. Cerebral angiography confirmed a highly vascular mass lesion in the same location. She was treated with radiosurgery on March 8 (maximum dose was 20Gy in the center and 10Gy in the peripheral part of the tumor). After radiosurgery, she had an uneventful course and clinical and radiosurgical improvement could be detected. Her neurological symptoms and signs gradually improved and reduction of the tumor size and perifocal edema could be seen one month after radiosurgery. However, 6 weeks after radiosurgery, she suddenly developed semicoma and right hemiplegia. CT scan disclosed a massive peritumoral hemorrhage. Then, emergency craniotomy, evacuation of the hematoma and total removal of the tumor were performed on April 24. Histopathological diagnosis was adenocarcinoma. It was the same finding as that of the previous breast cancer. Histopathological examination revealed necrosis without tumor cells in the center and residual tumor cells in the peripheral part of the tumor.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Peritumoral hemorrhage after radiosurgery for metastatic brain tumor: a case report]. 807 40

A 32-year-old woman with migraine for several years again had a migraine attack with headache, nausea, vomiting and eye-muscle disorder, 14 days after an uncomplicated delivery. Within 24 hours a left-dominant hemiparesis developed, followed 12 hours later by tonic-clonic seizure and deep unconsciousness (Glasgow score: 3); the patient could not be aroused. Cranial computed tomography revealed extensive infarction of the brainstem and cerebellum. Angiography demonstrated occlusion of the basilar artery but not other abnormalities of other vessels. There was no evidence for vascular anomalies and the clotting tests were normal. Transoesophageal echocardiography demonstrated an atrial septal aneurysm. But any interatrial shunt (e.g. through a patent foramen ovale) was excluded by colour Doppler sonography, making it highly unlikely that a paradoxical embolus was the cause of the infarction. The brainstem infarction resulting from the basilar artery occlusion did not respond to treatment and the patient died 10 days after the initial seizure.
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PMID:[Atrial septum aneurysm as the cause of a thromboembolic infarction of the brain stem and cerebellum?]. 835 49

Listerial brainstem encephalitis is a rare disease. Only 62 cases have been reported previously; all were in adults, only 8% of whom were immunosuppressed. The disease has a characteristic biphasic course: a nonspecific prodrome of headache, nausea or vomiting, and fever lasting for several days is followed by progressive asymmetrical cranial-nerve palsies, cerebellar signs, hemiparesis or hypesthesia, and impairment of consciousness. Neck stiffness was initially present in only 55% of the cases described thus far. Studies of cerebrospinal fluid often revealed only mild abnormalities. Cultures of cerebrospinal fluid and blood were positive in 41% and 61% of cases, respectively. Respiratory failure occurred in 41% of cases. Initial computed tomography of the brain often gave normal results; magnetic resonance imaging better demonstrated brainstem abnormalities. Overall mortality was 51%. All untreated patients died. When treatment with ampicillin or penicillin was initiated early, the rate of survival was > 70%; however, neurological sequelae developed in 61% of survivors.
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PMID:Brainstem encephalitis (rhombencephalitis) due to Listeria monocytogenes: case report and review. 850 61

Fabry's disease (FD) is a rare, sex-linked disorder resulting from alpha-galactosidase deficiency. Cerebrovascular complications have been reported in the literature but have not been systematically analyzed. We report 2 patients and review 51 previously reported cases (descriptive meta-analysis) to clarify the clinical, radiologic, and pathologic features. The average age at onset of cerebrovascular symptoms was 33.8 years for hemizygous individuals (n = 43) and 40.3 years of heterozygotes (n = 10). The most frequent symptoms and signs were as follows (in descending order of frequency): hemiparesis, vertigo/dizziness, diplopia, dysarthria, nystagmus, nausea/vomiting, head pain, hemiataxia, and ataxia of gait, in the hemizygote group; and memory loss, dizziness, ataxia, hemiparesis, loss of consciousness and hemisensory symptoms, in the heterozygote group. The vertebrobasilar circulation was symptomatic in 67% of the hemizygotes and 60% of the heterozygotes. Intracerebral hemorrhage was found in 4 patients (3 hemizygotes and 1 heterozygote). Elongated, ectatic, tortuous vertebral and basilar arteries were the most common angiographic and pathologic features. For the hemizygotes, the recurrence rate for cerebrovascular disease was 76% and the death rate was 55%; 86% of the heterozygotes had recurrent cerebrovascular event(s) and 40% died. The cerebrovascular manifestations of FD, in both hemizygotes and heterozygotes, are predominantly due to dilative arteriopathy of the vertebrobasilar circulation, frequently recur, and portend a poor prognosis.
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PMID:Cerebrovascular complications of Fabry's disease. 868 96

4 cases of central neurocytoma are reported. Sex distribution was symmetrical, average age at presentation was 29.7 years, and duration of symptoms varied from 1 day to 5 years. Headache and nausea were the most frequent symptoms; 1 patient was asymptomatic, 3 tumors were located in the left lateral ventricle and 1 in the third ventricle. 3 were operated on via an interhemispheric transcallosal route and 1 transcortically. Morbidity included symptomatic subdural effusions (2 cases), short term memory deficit (1) and transient hemiparesis with aphasia (1). There was no mortality.
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PMID:[Central neurocytoma]. 884 51

We report a case of multiphasic disseminated encephalomyelitis (MDEM) following viral illness presenting as multiple sclerosis (MS) in a 7-year-old boy. The patients had two episodes of alternating hemiparesis and other neurologic symptoms following viral infection, which were separated by 3 years. Neuroimaging studies demonstrated multiple, discrete, small nodules and large globular lesions in the cerebral white matter, basal ganglia, brainstem and cerebellar areas. Based on typical appearance of magnetic resonance imaging (MRI) and clinical manifestations including systemic symptoms such as fever, nausea, vomiting, headache and seizures followed by consciousness disturbance and other multifocal neurologic signs, the diagnosis of MDEM rather than that of MS was made. Because it is difficult to differentiate between MDEM and MS on the basis of the clinical history, the cerebrospinal fluid examination and evoked potential studies, this report emphasizes that the MRI study of the brain may provide an important clue for the diagnosis.
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PMID:Multiphasic disseminated encephalomyelitis mimicking multiple sclerosis. 889 Dec 39

A 35-year-old male was admitted with headache, nausea, and vomiting persisting for 2 days. Computed tomography (CT) revealed a left chronic subdural hematoma. Cerebral angiography demonstrated cerebral venous sinus thrombosis (CVST). He had presented with a subcutaneous mass involving the neck at age 2 years, which was shown to be a cavernous angioma, and thereafter shown signs of consumptive coagulopathy with systemic multiple hemangiomas. Burr hole aspiration of the hematoma was performed. Seventy-two-hours later, he developed clouding of consciousness and right hemiparesis. CT revealed a fresh hematoma in the operated subdural cavity and hemorrhagic diathesis manifested. A frontotemporoparietal large craniotomy was performed to remove the hematoma. Extensive electrocauterization was required. He had a satisfactory postoperative course. Collateral venous pathways, resulting from the CVST due to systemic multiple hemangiomas, may have caused hemodynamic stress in the bridging veins which subsequently induced chronic subdural hematoma.
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PMID:Cerebral venous sinus thrombosis associated with systemic multiple hemangiomas manifesting as chronic subdural hematoma--case report. 891 83

A case of Iotrolan encephalopathy is reported. A 66-year-old woman, suffering from subarachnoid hemorrhage, was admitted to our department on January 17th, 1995. After an operation for aneurysmal clipping and ventriculo-peritoneal shunt, she was discharged with no neurological deficiency. CT scan revealed ventricular enlargement and slight periventricular lucency. She was re-admitted on January 4th, 1996. She was suffering from nausea, vomiting, right hemiparesis, right hemi-hypesthesia and disturbance of consciousness. CT scan demonstrated right thalamic bleeding and bilateral ventricular hemorrhage. Further ventricular enlargement was also revealed. With medical treatment, her symptoms were relieved gradually. But disorientation and memory disturbance continued. Shuntography with Iotrolan was performed on February 2nd, 1996. The ventriculo-peritoneal shunt was demonstrated to be occluded on the abdominal side. The volume of Iotrolan used was about 8cc. She became very restless on the night of the examination. Her temperature was up to 38. CT on February 4th demonstrated brain penetration of the Iotrolan. Revision of ventriculo-peritoneal shunt, administration of steroids and hydration was performed. CSF findings demonstrated no abnormalities. Her symptoms were relieved gradually. Iotrolan is a non-ionic contrast media of dimer type, composed of C37 H48 I6 N6 O18. Its distinctive features are low distributing coefficient and high affinity with water. Contrasting several reports of Metrizamide encephalopathy, only 2 cases of Iotrolan encephalopathy were reported. Iotrolan is reported to be much safer than Metrizamide. We were able to find brain penetration by Iotrolan. It is expected to be a characteristic radiological finding of encephalopathy induced by contrast media. The mechanism of Iotrolan encephalopathy is obscure. Several theories concerning Metrizamide encephalopathy are proposed. These are (1) inhibition of hexokinase, (2) inhibition of acethylcholinesterase, (3) immunological mechanism and (4) vascular disturbance. Iotrolan has no 2-deoxy-glucose structure. The inhibition theory of hexokinase is least expected. Related matters are circulatory disturbance of liquor, dehydration, excessive contrast media, advanced age, diabetes mellitus, hypertension, epileptic patients and patients taking phenothiazines. Prompt therapy is important. Removal of contrast media, hydration and administration of steroids should be performed as early as possible.
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PMID:[A case of Iotrolan encephalopathy]. 893 76


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