Papers by Benjamin Gelber
The Nebraska medical journal, 1989
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Journal of Personalized Medicine, Feb 10, 2023
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Neurosurgery, 1990
Intraventricular neurocytoma is a rare clincopathological entity that has been recently recognize... more Intraventricular neurocytoma is a rare clincopathological entity that has been recently recognized. Previous reports have not described the magnetic resonance imaging findings of this tumor. This paper describes two patients with neurocytoma in which serpiginous flow voids and isointensity with cortex were distinctive features on the magnetic resonance imaging scan. Immunohistochemical studies showed reactivity for neuron-specific enolase, Leu-7, and S-100 protein. (Neurosurgery 26:140-144, 1990)
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The Nebraska medical journal, 1986
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The Nebraska medical journal, 1989
Doctor Walter Dandy was a pioneer in the surgical treatment of trigeminal neuralgia. The Frazier-... more Doctor Walter Dandy was a pioneer in the surgical treatment of trigeminal neuralgia. The Frazier-Spiller operation had been the standard operation for trigeminal neuralgia. Doctor Dandy pioneered the approach through the posterior fossa. He sectioned the lower-most 30 percent of the trigeminal nerve and found that trigeminal neuralgia was relieved. Anesthesia dolorosa did not develop, and the patients had only minimal sensory loss. Dandy's operation was not widely accepted, but microvascular decompression as described by Jannetta was developed by application of Dandy's principles. In twenty patients, we performed a partial trigeminal rhizotomy using Dandy's technique. A small sub-occipital craniectomy was performed and the trigeminal root entry zone exposed. The lowermost 30 percent of the trigeminal nerve was elevated with a blunt hook. The coagulating cautery was applied to the hook and the nerve partially sectioned. In each case, the trigeminal neuralgia was completel...
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The Nebraska medical journal, 1996
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Neurosurgery, 1993
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Neuroradiology, 1992
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Journal of Neurosurgery, 1988
✓ Castleman's disease is a rare, benign lymphoproliferative disorder that usually arises in l... more ✓ Castleman's disease is a rare, benign lymphoproliferative disorder that usually arises in lymph nodes, most commonly in the mediastinum. The authors report the clinical and pathological features of three patients with localized Castleman's disease of the leptomeninges. There were two women, aged 63 and 82 years, and one 25-year-old man. Two patients had progressive focal motor seizures of 3 and 24 months' duration, and the third patient presented acutely with generalized seizures. The clinical diagnosis was meningioma in each case, based on computerized tomography scans, cerebral arteriography, and the operative findings. All three lesions arose in the leptomeninges, compressed the underlying cerebral cortex, and infiltrated the overlying dura to a variable extent. Surgical excision of the tumor resulted in marked clinical improvement in all three patients. Histologically, two cases were classified as the hyaline-vascular type and one as the plasma cell type. Immunohis...
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Journal of Neurosurgery, 1980
✓ Ten patients with intracranial internal carotid artery (ICA) aneurysms were managed by combinin... more ✓ Ten patients with intracranial internal carotid artery (ICA) aneurysms were managed by combining ICA ligation with an extracranial to intracranial bypass procedure. Nine of these grafts were proven patent by angiogram. One patient was unable to return for postoperative angiograms; his graft had appeared patent on physical examination. Seven aneurysms were intracavernous, two were giant carotid-ophthalmic aneurysms, and one aneurysm was at the intracranial bifurcation of the ICA. Despite occlusion cerebral blood flow (CBF) measurements of 20 ml/100 gm/min or less in six patients, only one patient was unable to tolerate ICA ligation. Three patients developed transient aphasia, but there were no permanent neurological deficits associated with the carotid occlusion. Seven patients had improvement in pre-existing extraocular palsies or visual field defects. Others remained stable. The combination of an extracranial to intracranial microvascular bypass procedure with ICA ligation seems ...
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Journal of Neurosurgery, 1987
✓ Three cases of acute disc herniation causing cauda equina compression syndrome after chemonucle... more ✓ Three cases of acute disc herniation causing cauda equina compression syndrome after chemonucleolysis are described. All three patients had myelographic blocks and, despite emergency decompression procedures, were left with residual neurological deficits. Recommendations are made regarding evaluation and therapeutic intervention, and possible etiologies of this problem are reviewed.
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Stereotactic and Functional Neurosurgery, 1991
The target point for thalamotomy is generally determined in relationship to the intercommissural ... more The target point for thalamotomy is generally determined in relationship to the intercommissural line. Standard axial computed tomography (CT) images can show both the anterior and posterior commissures. However, these commissures may not always be visible on the same axial image, as the plane in which the two commissures are located may not be the same as the plane of scanning. Mathematical calculations were performed to determine the degree of error that would occur if the target point determination was performed using axial images alone, even when the two commissures were not in the same plane as the CT images. The degree of error was found to be directly proportional to the distance between the plane of scanning for the two commissures. For each millimeter separation of these planes an error of approximately 0.11 mm in the z-coordinate (caudo-cephaled distance) and 0.04 mm in the y-coordinate (antero-posterior distance) was observed. These errors were felt to be negligible, especially since the final target point determination is based on physiological responses.
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The Nebraska medical journal, 1990
A series of 13 elderly patients (eight female, five male) with giant intracranial aneurysms is pr... more A series of 13 elderly patients (eight female, five male) with giant intracranial aneurysms is presented. The mean age was 67.8 years, with a range of 57-81 years. The paper presents the significant medical problems associated with operating on elderly individuals. Surgical intervention was attempted in all cases. Following surgical treatment, eight patients (62%) are alive and functional. Three patients (23%) are alive but partially disabled. Two patients (15%) died during the perioperative period. This compares favorably with other series which include younger patients indicating surgery for giant intracranial aneurysms can be carried out in elderly patients with an acceptable morbidity and mortality.
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Papers by Benjamin Gelber