Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
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Couldwell, William T.; House, Paul A. | De novo fenestration of the optic nerve | Fenestration of the optic nerve or chiasm due to the presence of an aneurysmal dilation of the internal carotid artery (ICA) has been described previously. In three of five cases reviewed recently, the optic nerve was penetrated by an ICA?ophthalmic artery aneurysm.3 Penetration of the optic nerve w... | Fenestration; Aneurysm | 2005 |
| 2 |
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Couldwell, William T. | Far Lateral Transcondylar Approach for Resection of Neurenteric Cysts of the Cervicomedullary Junction (Far-lateral transcondylar approach: surgical technique and its application in neurenteric cysts of the cervicomedullary junction. Report of two cases.) | Neurenteric cysts are rare benign lesions of the central nervous system that are lined by endodermal cell-derived epithelium. Although they occur mostly in the spine, they can occur intracranially, most often in the posterior fossa. Neurenteric cysts that are located in the anterior cervicomedullary... | Cervical Vertebrae; Medulla Oblongata; Neural Tube Defects; Neurosurgical Procedure | 2005-08-15 |
| 3 |
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Couldwell, William T. | Comment on Kitano, M. and Taneda, M.: Extended transsphenoidal approach to the anterior communicating artery aneurysm: aneurysm incidentally identified during macroadenoma resection | Kitano and Taneda describe the successful clipping of an ACoA aneurysm via the transsphenoidal approach. There are limitations of the approach; most notable are the limited and narrow corridor and the relationship between the aneurysm and the optic chiasm, which may hinder full visualization of the ... | Aneurysm; Transsphenoidal approach | 2007 |
| 4 |
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Couldwell, William T. | Response to Craniopharyngioma adherence to the hypothalamus | To The Editor: We have viewed with great interest the special supplement published by Neurosurgical Focus in January 2013 (Neurosurgical Focus, Video Atlas of Operative Surgery: Intraventricular Lesions: Microscopic and Endoscopic Approaches, Vol 34: January 2013) in which a compilation of videos de... | 2014-01-01 | |
| 5 |
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Couldwell, William T. | Fenestration of the oculomotor nerve by a duplicated posterior cerebral artery and aneurysm | The authors report a case of a posterior cerebral artery aneurysm arising from an aberrant arterial branch that was found to be splitting the oculomotor nerve. This 63-year-old man presented with headaches, and CT imaging revealed subarachnoid hemorrhage primarily within the basilar cisterns. Formal... | 2009-01-01 | |
| 6 |
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Kestle, John R. W.; Brockmeyer, Douglas Lee | Optic pathway gliomas: a review | Optic pathway gliomas represent approximately 3-5% of childhood intracranial tumors. They usually occur in children during the first decade of life and are seen in 11-30% of patients with neurofibromatosis Type 1 (NF1). Although these tumors are typically low-grade gliomas, the clinical course and n... | Optic pathway glioma; Hypothalamus glioma; Neurofibromatosis Type 1 | 2007 |
| 7 |
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Kestle, John R. W.; Brockmeyer, Douglas Lee | Cranial base strategies for resection of craniopharyngioma in children | The optimal treatment of craniopharyngioma in children remains a challenge. The use of complete excision to minimize recurrence continues to be controversial because of the risk of postoperative morbidity and death. Advances in skull base approaches, modern microsurgical techniques, neuroimaging, an... | Craniopharyngioma; Surgical approach; Skull base surgery | 2005 |
| 8 |
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Couldwell, William T. | Pituitary apoplexy in the magnetic resonance imaging era: clinical significance of sphenoid sinus mucosal thickening | Object. The authors report their experience with pituitary apoplexy and evaluate the clinical significance of sphenoid sinus mucosal thickening found on magnetic resonance (MR) imaging. Methods. The cases of 28 patients (19 males and nine females) with pituitary apoplexy were reviewed retrospectiv... | 2006-06 | |
| 9 |
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Couldwell, William T. | Pituitary apoplexy: diagnosis and management | Pituitary apoplexy, an uncommon complication of pituitary adenomas, was first decribed in 1898 when pearce Bailey reported hemorrhage into a pituitary adenoma in a 50 year old man with acromegaly. The patient presented with sudden onset of headache, nausea, vomiting, fever, oculomotor palsies, and v... | Pituitary Apoplexy; Pituitary adenoma; Transsphenoidal surgery | 2003 |
| 10 |
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Creel, Donnell J.; Leventhal, Audie G. | Retinal projections in tyrosinase-negative albino cats | Retinal projections were examined in two tyrosinase-negative albino cats using autoradiographic techniques. Cats from this colony have pink eyes; their retinal pigment epithelium, ciliary body, and iris epithelium are completely devoid of melanin pigment. Test breeding for five generations indicates... | Cats; Albinism; Vision; Autoradiography; Retina | 1982-07 |
| 11 |
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Schmidt, Meic H.; MacDonald, Joel D.; Jensen, Randy L.; Couldwell, William T. | Hypophysial transposition (hypophysopexy) for radiosurgical treatment of pituitary tumors involving the cavernous sinus | Stereotactic radiosurgery (SRS) is performed with increasing frequency in the treatment of residual or recurrent pituitary adenomas. Its major associated risk in these cases of residual or recurrent pituitary tumor adjacent to normal functional pituitary gland is radiation exposure to the pituitary,... | Hypophysial transposition; Hypophysopexy; Pituitary tumors; Stereotactic radiosurgery; Pituitary transposition; Hypopituitarism | 2003 |
| 12 |
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Digre, Kathleen B. | Selective MR imaging approach for evaluation of patients with Horner's syndrome. | PURPOSE: To assess the usefulness of MR in the evaluation of patients with Horner's syndrome. PATIENTS AND METHODS: We prospectively performed MR imaging in 33 patients with Horner's syndrome (13 preganglionic and 20 postganglionic) using a protocol specifically designed for pre- and postganglionic ... | Horner Syndrome; Magnetic Resonance Imaging; Epidemiology | 1992-01 |
| 13 |
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Kestle, John R. W. | Value of postoperative surveillance imaging in the management of children with some common brain tumors | The rationale for obtaining surveillance computerized tomography (CT) scans or magnetic resonance (MR) images in pediatric patients with brain tumors is that early detection of recurrence may result in timely treatment and better outcome. The purpose of this study was to investigate the value of sur... | Brain neoplasm; Brain tumors; Computerized tomography scanning; Surveillance; Postoperative surveillance | 1996 |
| 14 |
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Kestle, John R. W. | Moyamoya phenomenon after radiation for optic glioma | The role of radiotherapy in the management of patients with optic pathway glioma is controversial. In a series of patients with optic pathway glioma treated at The Hospital for Sick Children in Toronto, five children were encountered who developed moyamoya phenomenon after radiotherapy. A retrospec... | Optic pathway glioma | 1993 |
| 15 |
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Couldwell, William T. | History and evolution of transsphenoidal surgery | Initial attempts at transcranial approaches to the pituitary gland in the late 1800s and early 1900s resulted in a mortality rate that was generally considered prohibitive. Schloffer suggested the use of a transsphenoidal route as a safer, alternative approach to the sella turcica. He reported the f... | Neurosurgical history; Transsphenoidal surgery; Pituitary tumor | 2001 |
| 16 |
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Couldwell, William T.; Schmidt, Richard H. | Ruptured intracranial dermoid cysts: clinical, radiographic, and surgical features | Intracranial dermoid cysts are pathologically characterized by a thick, stratified squamous epithelium cyst wall containing dermal elements. Rupture into the subarachnoid spaces and ventricles is extremely rare. We review the clinical, radiographic, and surgical features of eight ruptured dermoid c... | Dermoid cyst; Intracranial; Rupture; Tumor | 2008 |
| 17 |
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Couldwell, William T.; Chin, Steven S. | Extranodal NK/T-cell lymphoma presenting as a pituitary mass | Extranodal NK/T-cell lymphomas are uncommon neoplasms that are highly aggressive and show a strong association with Epstein-Barr virus. They most commonly affect the nasal cavity and paranasal sinuses; manifestation as a primary pituitary tumor has never been described. The authors report a case of ... | 2007-09 | |
| 18 |
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Couldwell, William T. | Management of pituitary adenomas | We present an overview of the management of pituitary adenomas, with discussions of microanatomy, of diagnostic studies of general neuroendocrine function, and of radiologic evaluation. We discuss the diagnosis of pituitary adenoma and its treatment with sections on null cell, prolactin (PRL)-secre... | Pituitary adenoma; Transsphenoidal surgery; Corticotropin; Prolactin; Growth hormone; Transcranial surgery | 1994 |
| 19 |
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Couldwell, William T. | Zones of approach for craniofacial resection: minimizing facial incisions for resection of anterior cranial base and paranasal sinus tumors | Anterior cranial base tumors are surgically resected with combined craniofacial approaches that frequently involve disfiguring facial incisions and facial osteotomies. The authors outline three operative zones of the anterior cranial base and paranasal sinuses in which tumors can be resected with th... | Anatomic study; Anterior cranial base; Cranial base surgery; Craniofacial surgery; Minimally invasive | 2003 |
| 20 |
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Osborne, Anne G.; Couldwell, William T. | Rathke cleft cyst intracystic nodule: a characteristic magnetic resonance imaging finding. | OBJECT: The fluid content of Rathke cleft cysts (RCCs) displays variable appearances on magnetic resonance (MR) images and can appear indistinguishable from other intrasellar or suprasellar cystic lesions. Intracystic nodules associated with individual RCCs have been noted, but to date their signifi... | Brain Neoplasms; Central Nervous System Cysts; Magnetic Resonance Imaging | 2005-11-01 |
| 21 |
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Bastiani, Michael | Loss of axons in the cat optic nerve following fetal unilateral enucleation: an electron microscopic analysis | Between the 48th day of gestation (E-48) and maturity, the number of axons in the cat optic nerve is reduced by approximately 50%. On the basis of an electron microscopic assay, the axon population of the E-48 nerve was estimated to be 328,000. In contrast, estimates from two normal adults were 159,... | Ganglion cell death; Retinofugal projection; Retinal ganglion cell axons | 1983 |
| 22 |
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Couldwell, William T. | Rathke cleft cyst intracystic nodule: a characteristic magnetic resonance imaging finding | Object. The fluid content of Rathke cleft cysts (RCCs) displays variable appearances on magnetic resonance (MR) images and can appear indistinguishable from other intrasellar or suprasellar cystic lesions. Intracystic nodules associated with individual RCCs have been noted, but to date their signifi... | 2005 | |
| 23 |
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Couldwell, William T. | Photophobia in a blind patient: an alternate visual pathway | Photophobia is a common neurological and ophthalmological symptom that has been associated with a growing number of neurosurgical conditions, especially compressive lesions. The exact signaling pathways and neurophysiological features of the disorder are not well understood; however, data from mult... | 2006-11 | |
| 24 |
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Digre, Kathleen B.; Couldwell, William T.; Amini, Amin | Photophobia in a blind patient: An alternate visual pathway. Case report. | Photophobia is a common neurological and ophthalmological symptom that has been associated with a growing number of neurosurgical conditions, especially compressive lesions. The exact signaling pathways and neurophysiological features of the disorder are not well understood; however, data from multi... | Photophobia, Blindness, Signaling Pathway, Pretectal Nuclei, Trigeminal Pathway | 2006-12-14 |
| 25 |
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Couldwell, William T. | Hemorrhagic and nonhemorrhagic Rathke cleft cysts mimicking pituitary apoplexy | Object. Rathke cleft cysts (RCCs) are infrequently symptomatic, and apoplexy is one of the most unusual presentations. Only a few cases of apoplexy associated with RCCs have been reported, and their clinical, imaging, surgical, and pathological features are poorly understood. In the cases that have ... | 2008-01-01 |