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Query: UMLS:C0030552 (paresis)
 5,831 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A case of acoustic neurinoma presenting with subarachnoid hemorrhage is reported. The patient, a 33-year-old female, had suffered from left hearing disturbance and tinnitus for several years prior to admission. She had sudden onset of severe headache in the left posterior auricular region, nausea and vomiting while watching a play-going. Immediately she was brought to a neighboring hospital by ambulance. Lumbar puncture demonstrated xanthochromic cerebrospinal fluid with high opening pressure of 380 mmH2O or more and she was diagnosed as having subarachnoid hemorrhage (SAH). As her level of consciousness was progressively lowered, she was transferred and admitted to our hospital. Findings of plain CT scan on admission suggested that she had a brainstem hemorrhage with acute obstructive hydrocephalus. After the immediate operation of ventricle drainage, she became alert. Two weeks after admission, contrast-enhanced CT scan, internal meatus tomography and vertebral angiography were performed because she complained of tinnitus and hearing loss of her left ear. A huge lt. C-P angle tumor was revealed and its total removal was carried out successfully after V-P shunt operation for her hydrocephalic condition. Histological examination showed a typical acoustic neurinoma. The postoperative course was uneventful only with a moderate facial paresis on her left side. Acute and severe subarachnoid hemorrhage of the posterior fossa in cases of acoustic neurinoma has been reported very sporadically. However, CT examination revealed such a rare case of acoustic neurinoma and lead us to a successful surgical treatment for the patient.
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PMID:[A case of acoustic neurinoma presenting as subarachnoid hemorrhage]. 406 13

A chronic sixth-nerve paresis, even if isolated, may be neither benign nor idiopathic. We describe five patients with tumors in the basisphenoid region manifested clinically by isolated, unilateral abducens paresis for five to 20 years. There were three meningiomas (one confirmed by biopsy, two presumed), a neurilemmoma, and a chondrosarcoma. Isolated abducens paresis may persist for years in both children and adults with tumors or aneurysms. All patients with chronic sixth-nerve paresis should undergo vigorous neuroradiologic investigations to rule out a petrous apex-cavernous sinus mass lesion.
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PMID:Chronic isolated abducens paresis from tumors at the base of the brain. 683 Apr 71

A patient with trigeminal neurinoma, presenting unusual symptoms, is described. There was no trigeminal sensory or motor deficit. The only presenting symptoms were unilateral abducens nerve paresis and alternating hemiplegic episodes. The trigeminal somatosensory-evoked response was normal before surgery. After complete removal of the tumor from both the posterior and middle cranial fossae, severe trigeminal sensory deficit ensued, accompanied by impairment of the evoked response. Improvement of the trigeminal nerve function could be predicted by significant changes in a repeat trigeminal sensory-evoked response obtained 2 months after the operation.
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PMID:Trigeminal neurinoma with unusual presentation. Report of a case with trigeminal somatosensory-evoked response. 683 94

Two examples of intracerebral neurilemmoma occurred in the absence of von Recklinghausen's disease. The first case was unique because the patient was clinically asymptomatic, and the second case was unusual with a combination of oligodendroglioma and neurilemmoma in the same mass. The latter lesion arising in persons without stigmata of neurofibromatosis has not been described. The nature of nerve sheath neoplasms in both instances has been verified by electron-microscopy. Clinical features of this rare neoplasm differ from those of acoustic or other cranial nerve tumour, particularly in relation to age and sex. Intracerebral neurilemmoma has been found most often in the first two decades of life and more often in males. Seizures and paresis, although non-specific are common signs and symptoms. Probable histogenesis of this neoplasm from perivascular elements in brain has been suggested.
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PMID:Intracerebral neurilemmoma. 733 5

A rare case of a neurinoma of the left facial nerve was investigated on the electron microscopic level. The tumor developed in a 27 years old man and induced a facial paresis by nerve compression. Ultrastructurally the tumour cells were characterized by markedly notched nuclei and a well developed organized cytoplasm with multiple organelles (lysosomes, Golgi's complex, mitochondria, rough endoplasmic reticulum). Fibroblasts were frequently observed in the interstice. So-called "long spacing collagen" was not detected in the interstice. The arrangement of the tumour cells represents the Antoni A type.
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PMID:[The ultrastructure of a neurinoma derived from the facial nerve (author's transl)]. 745 29

A survey of the files of the Department of Neuropathology at the Mexican Neurological Institute, disclosed a total of 100 biopsies from 85 patients, 47 of whom females, with the histological diagnosis of Schwannoma. The survey comprised a period between July 1985 and June 1990. Schwannomas accounted for 4.08 per cent of 2,447 biopsies during that period. The age range was from 15 to 69 years with and average of 37.6 years. In 64 cases the tumors were localized intracranially, and in 18 within the spinal canal. The eighth never was the origin in 57 cases, the fifth in two, and the seventh in one; in four other cases the origin could not be ascertained. The intraspinal tumors were cervical in seven cases thoracic in nine, and lumbosacral in two. The most common clinical findings in 52 cases were decreased audition, increased intracranial pressure in 20, cerebellar involvement in 17, trigeminal in 16, facial paresis in 16, oculomotor disorder in six and motor neurone impairment in five.
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PMID:[Schwannomas. Clinical and pathological study of 85 cases]. 792 96

A 25-year experience with total conservative parotidectomy for primary benign pleomorphic adenoma (PBPA) of the parotid gland in a consecutive series of 229 patients has been reviewed. This study focuses on survival, morbidity, PBPA recurrence, postoperative facial nerve dysfunction, and Frey's syndrome. Surgical death was never encountered in this study. The overall incidence for postoperative hemorrhage, hematoma, seroma, skin necrosis, great auricular nerve schwannoma, and keloid scar was 1.7%, 6.1%, 4.8%, 0.9%, 15.7%, and 8.3%, respectively. Five-, 10-, 15-, and 20-year PBPA control actuarial rate was 99.6%. The overall incidence for temporary facial paresis and paralysis was 64.6% and 5.6%, respectively. Kaplan-Meier actuarial analysis demonstrated that paresis recovery was noted until the eighteenth postoperative month. The overall incidence for permanent facial paresis and paralysis was 3.9% and 0%, respectively. None of the following variables--sex, age, PBPA size, PBPA location, PBPA contact with the facial nerve, inadvertent PBPA spillage, or surgeon's experience--was statistically related to PBPA recurrence and facial nerve dysfunction. The overall incidence for Frey's syndrome was 65.9%. Kaplan-Meier actuarial analysis demonstrated the need for a minimal 5-year follow-up to assess Frey's syndrome incidence. The mean age was statistically lower in patients presenting with Frey's syndrome.
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PMID:Total conservative parotidectomy for primary benign pleomorphic adenoma of the parotid gland: a 25-year experience with 229 patients. 799 Jun 39

The effects of relatively low dose gamma knife irradiation on acoustic schwannoma were evaluated. The signal intensity change and tumor shrinkage on magnetic resonance (MR) images, change in hearing, and complications in 28 patients (mean age 47.0 +/- 13.6 yrs) were studied. Three patients had bilateral tumors. Six were already deaf when treated. The maximum tumor diameter was 35 mm. The mean dose delivered to the tumor was 12.1 +/- 1.6 Gy at the periphery, and 25.2 +/- 4.3 Gy at the center. The mean follow-up time was 16 months and the longest 24 months. Lowering of the MR signal intensity in the tumor center appeared after 3 months at earliest but generally after 6 months. Signs of tumor shrinkage appeared within 12 months on average. Cyst in the tumor enlarged rapidly after treatment in two patients. The percentage of hearing preservation was 85% (17/20) at 3 months, 80% (16/20) at 6 months, 72% (13/18) at 9 months, 75% (12/16) at 12 months, 67% (8/12) at 15 months, 60% (6/10) at 18 months, and 50% (2/4) at 24 months. Subtle changes in hearing were detected by speech tone audiometry. Temporary facial numbness and weakness was seen in one patient each. No patient had lower cranial nerve paresis. Relatively low dose gamma knife radiosurgery is effective in suppressing growth of acoustic schwannoma with preservation of hearing.
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PMID:Gamma knife radiosurgery for acoustic schwannoma: early effects and preservation of hearing. 853 29

Forty-two cases of perineurioma have been reported in the literature. This report adds the first intratemporal facial nerve perineurioma to the literature and reviews the others. Unlike schwannoma and neurofibroma, the histological features of perineurioma demonstrate onion bulb-like structures with a strong positive immunoreactivity for epithelial membrane antigen. The clinical history of gradual facial nerve paresis was 15 years in the case presentation and the clinical diagnosis of tumor was overlooked.
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PMID:Intratemporal facial nerve perineurioma. 861 98

A 46-year-old female presented with an intracranial hypoglossal neurinoma manifesting only as spasticity in the lower extremities without hypoglossal nerve paresis. Magnetic resonance imaging greatly aided in the early detection of the tumor with this atypical presentation. Unilateral suboccipital craniotomy with resection of the occipital condyle allowed us to approach the tumor in front of the medulla from an inferolateral direction and to remove it successfully. We emphasize the need to pack dead space with fatty tissue to prevent cerebrospinal fluid leakage.
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PMID:Intracranial hypoglossal neurinoma without preoperative hypoglossal nerve paresis--case report. 870 Mar 16


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