Abstract:
:OBJECTIVE Mineralized or desiccated colloid cysts pose some unique challenges to endoscopic removal. The extrusion of the solid matrix into the intraventricular compartment has not been previously reported and, as such, no guidance exists regarding its predilection, prevention, and fate. METHODS Postoperative imaging studies in a registry of patients undergoing endoscopic removal of colloid cyst were reviewed to detect any solid matrix within the ventricular compartment. Preoperative images and operative notes were used to determine if any features were predictive. Serial postoperative images and clinical notes were used to characterize the implications of these findings. RESULTS From a review of 94 patients, 10 (10.6%) patients had evidence of an extruded intraventricular solid fragment (median follow-up 4 months; range 0.5-115 months). Of the evaluable patients, 7 of 9 patients had T1-weighted hyperintense and T2-weighted hypointense cysts on preoperative scans. Seventy-eight percent of the extrusions were on the same side as the endoscopic entry. Three patients demonstrated early fragment migration, but not after 8 months of radiological follow-up. All evaluable patients demonstrated improvement in their hydrocephalus, and none suffered a complication attributable to the intraventricular extruded fragments. CONCLUSIONS Intraventricular extruded colloid fragments can occur after endoscopic resection, with the possible risk demonstrated as cyst hypointensity on preoperative T2-weighted images. The finding does not seem to result in any clinical morbidity, and radiographic involution is the rule. Migratory capacity, however, does exist and justifies a more frequent imaging surveillance schedule and consideration for removal.
journal_name
J Neurosurgjournal_title
Journal of neurosurgeryauthors
Abdel Latif AM,Souweidane MMdoi
10.3171/2015.6.JNS142676subject
Has Abstractpub_date
2016-09-01 00:00:00pages
570-5issue
3eissn
0022-3085issn
1933-0693journal_volume
125pub_type
杂志文章abstract:OBJECT:A growing number of published studies have recently demonstrated the role of resection in overall survival (OS) for patients with gliomas. In this retrospective study, the authors objectively investigated the role of the extent of resection (EOR) in OS in patients with low-grade gliomas (LGGs). METHODS:Between ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2012.8.JNS12393
更新日期:2012-12-01 00:00:00
abstract::Results of proximal anterior cerebral artery occlusion are described in 68 patients with anterior communicating artery aneurysms. The procedure is found useful in the treatment of these aneurysms because of its technical simplicity and the low rates of mortality and morbidity achieved. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1975.43.4.0426
更新日期:1975-10-01 00:00:00
abstract:OBJECT:The hypogastric nerve (HGN) plays a crucial role in the primary functions of ejaculation: sperm transport through the vas deferens, secretion of prostatic fluid, and bladder neck closure. This study was undertaken to explore the possibility of restoring HGN function to the seminal tract and preserving its cross-...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1998.88.4.0726
更新日期:1998-04-01 00:00:00
abstract:OBJECT:Pituitary tumors are abnormal growths that develop in the pituitary gland. The Central Brain Tumor Registry of the United States (CBTRUS) contains the largest aggregation of population-based data on the incidence of primary CNS tumors in the US. These data were used to determine the incidence of tumors of the pi...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2014.5.JNS131819
更新日期:2014-09-01 00:00:00
abstract::Retrovirus-mediated herpes simplex virus-thymidine kinase (HSV-tk) gene therapy is a promising approach in the treatment of brain tumors. Previous in vitro and in vivo studies have demonstrated a bystander effect in which nonmodified tumor cells in proximity to HSV-tk-modified tumor cells are killed with the modified ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.83.4.0698
更新日期:1995-10-01 00:00:00
abstract:OBJECT:Symptoms from Parkinson's disease improve after surgical ablation of the medial globus pallidus (GPm). Although, in theory, selective chemical ablation of neurons in the GPm could preserve vital structures jeopardized by surgery, the potential of this approach is limited when using traditional techniques of drug...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1999.90.5.0928
更新日期:1999-05-01 00:00:00
abstract::The case of a 30-year-old woman with Chiari I malformation and a cervicothoracic syrinx is presented. The patient was followed clinically over a 2 1/2-year period. Spontaneous and complete resolution of the syrinx, as documented by serial magnetic resonance studies, was accompanied by only a minimal change in objectiv...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1991.74.2.0283
更新日期:1991-02-01 00:00:00
abstract::Because it has been difficult to predict the outcome of patients with head injury in the early period after admission, a clinical study was undertaken to evaluate if the fibrinolytic parameters could be reliable indicators of outcome. Seventy patients presenting with head injury without obvious trauma in other regions...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1997.86.5.0768
更新日期:1997-05-01 00:00:00
abstract::The authors report a case of in-stent restenosis (ISR) of the middle cerebral artery (MCA) following bare-metal stent (BMS) deployment and subsequent treatment using a drug-eluting stent (DES). This 65-year-old woman presented with frequent transient ischemic attacks. Initial studies revealed occlusion of the left int...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2009.8.JNS081609
更新日期:2010-04-01 00:00:00
abstract:OBJECT:Neurogenesis, which is upregulated by neural injury in the adult mammalian brain, may be involved in the repair of the injured brain and functional recovery. Therefore, the authors sought to identify agents that can enhance neurogenesis after brain injury, and they report that (Z)-1-[N-(2-aminoethyl)-N-(2-ammoni...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2003.99.2.0351
更新日期:2003-08-01 00:00:00
abstract::The fourth Editor of the Journal of Neurosurgery offers short vignettes on the Editors who preceded and succeeded him. He recounts some of the challenges that were faced and changes that were made during his time as Editor. One of the major changes was production of the Journal via computer. ...
journal_title:Journal of neurosurgery
pub_type: 历史文章,杂志文章
doi:10.3171/jns.1994.81.1.0147
更新日期:1994-07-01 00:00:00
abstract::The authors describe a simple, new method for removing broken pedicle screws. Under microscopic visualization a straight, narrow slot is etched in the broken surface of the pedicle screw by using a power drill with a 2-mm diamond burr. A minus screwdriver is then inserted into the slot, and the broken screw is rotated...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/spi.2001.95.1.0150
更新日期:2001-07-01 00:00:00
abstract::A cavernous hemangioma occurring in the cavernous sinus is a rare vascular tumor that causes cranial nerve symptoms by direct compression. Surgical removal is often difficult because excessive intraoperative bleeding is expected. These lesions remain a therapeutic challenge even with state-of-the-art treatment modalit...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2002.97.supplement
更新日期:2002-12-01 00:00:00
abstract::In this experiment, the effects of ischemia on neural conduction in the monkey spinal cord were studied. In six monkeys generalized ischemia of the spinal cord was created by bleeding the animals to a hypotensive level below the lower limits of autoregulation in the spinal cord. The progressive development of spinal c...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1979.50.5.0639
更新日期:1979-05-01 00:00:00
abstract::Head trauma, intracerebral hematoma formation, and hemorrhagic cerebral infarction cause extravasation of the intravascular contents, red blood cell (RBC) hemolysis, hemosiderin deposition within the neuropil, and an increased incidence of epilepsy. Reports conflict regarding the efficacy of the administration of prop...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1984.60.3.0467
更新日期:1984-03-01 00:00:00
abstract:OBJECTIVE:Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is known to reduce motor symptoms of Parkinson's disease (PD). The effects of DBS on various nonmotor symptoms often differ from patient to patient. The factors that determine whether or not a patient will respond to treatment have not been elucida...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2020.6.JNS201126
更新日期:2020-10-09 00:00:00
abstract::Pilomyxoid astrocytomas have been identified as a more aggressive variant of pilocytic astrocytomas that occur in infants and in young children. These tumors are characterized by a perivascular arrangement of pilocytic cells that has a monomorphous architecture with uniform, elongated bipolar cells loosely ranged with...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,评审
doi:10.3171/jns.2003.99.2.0416
更新日期:2003-08-01 00:00:00
abstract::A patient with findings of bilateral cortical blindness and a unilateral carotid bruit is reported. A persistent trigeminal artery allowed emboli from a unilateral ulcerated internal carotid plaque to affect the visual cortex bilaterally. The angiographic findings and a brief discussion of this anomalous artery are pr...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1980.52.5.0709
更新日期:1980-05-01 00:00:00
abstract::Hemangiopericytoma is a vascular neoplasm consisting of capillaries outlined by an intact basement membrane that separates the endothelial cells of the capillaries from the spindle-shaped tumor cells in the extravascular area. These neoplasms are found in soft tissues but have rarely been shown to involve the spinal c...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1978.49.6.0914
更新日期:1978-12-01 00:00:00
abstract:OBJECT:The management issues of 106 cases of pituitary tumors with a fluid level within the fluid content of the cystic part of the tumor (a "fluid-fluid" level) were reviewed. METHODS:Between 2000 and March 2009, 1660 pituitary tumors were treated neurosurgically at K.E.M. Hospital. Investigations of 106 of these cas...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2009.11.JNS091083
更新日期:2010-06-01 00:00:00
abstract::The role of specific neuronal populations in epileptic foci was studied by comparing epileptic and non-epileptic cortex removed from patients with low-grade gliomas. Epileptic and nearby (within 1 to 2 cm) non-epileptic temporal lobe neocortex was identified using electrocorticography. Cortical specimens taken from fo...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1992.77.2.0209
更新日期:1992-08-01 00:00:00
abstract::OBJECTIVECerebrovascular bypass surgery is a challenging yet important neurosurgical procedure that is performed to restore circulation in the treatment of carotid occlusive diseases, giant/complex aneurysms, and skull base tumors. It requires advanced microsurgical skills and dedicated training in microsurgical techn...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2017.11.JNS17318
更新日期:2018-05-11 00:00:00
abstract:OBJECT:The aim of this study was to assess the histopathological differences between advanced atherosclerotic carotid artery (CA) plaques with signal hyperintensity on T1-weighted MR images and those without, focusing on necrotic core size and intraplaque hemorrhage (IPH). METHODS:Thirty-five patients scheduled for ca...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/2010.3.JNS091057
更新日期:2010-10-01 00:00:00
abstract::During craniotomy for supratentorial intraparenchymal space-occupying lesions, with the patient either under general anesthesia or awake, a smaller durotomy designed to expose only the region of resection may be desirable because of brain swelling. Similarly, during repeat craniotomy or craniotomy following cerebral i...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.80.4.0756
更新日期:1994-04-01 00:00:00
abstract::A method of regulating flow rate through cerebrospinal fluid (CSF) shunts with the addition of a flow-regulating device (FRD) is reported. The FRD consists of a small-caliber (0.4 mm) Teflon tube placed in the usual connector. This device has the advantage of converting the original shunt valves to valves for higher-r...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1982.57.4.0570
更新日期:1982-10-01 00:00:00
abstract::A technique employing a Doppler ultrasound flowmeter in determining cerebrospinal fluid shunt patency is described. The technique has proven to be a valuable aid in the elevaluation of the patient in whom shunt function is in question. ...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1975.42.6.0728
更新日期:1975-06-01 00:00:00
abstract::Surgical sacrifice of the carotid artery is a frequently anticipated event during the treatment of certain aneurysms and tumors. The ability to predict tolerance to carotid artery occlusion is therefore of benefit when planning procedures in which the carotid artery is at risk. A trial of carotid artery occlusion usin...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1994.81.1.0015
更新日期:1994-07-01 00:00:00
abstract:OBJECT:To explore factors affecting the survival rate in patients with meningiomas, the authors used the National Cancer Data Base (NCDB), which includes tumors from approximately 1000 hospitals participating in the American College of Surgeons tumor registry program. METHODS:Analysis included over 9000 cases diagnose...
journal_title:Journal of neurosurgery
pub_type: 杂志文章,多中心研究
doi:10.3171/jns.1998.88.5.0831
更新日期:1998-05-01 00:00:00
abstract:OBJECT:The aim of this study was to investigate the effects of moderate hyperventilation on intracranial pressure (ICP), jugular venous oxygen saturation ([SjvO2], an index of global cerebral perfusion), and brain tissue PO2 (an index of local cerebral perfusion). METHODS:Ninety-four tests consisting of 20-minute peri...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.2002.96.1.0097
更新日期:2002-01-01 00:00:00
abstract::A case is reported of severe unilateral hemispheric edema and localized hemorrhage associated with seizures following endarterectomy of an ipsilateral high-grade carotid stenosis. Imaging studies including angiography, computerized tomography (CT), magnetic resonance imaging/angiography, and xenon-CT, suggested postop...
journal_title:Journal of neurosurgery
pub_type: 杂志文章
doi:10.3171/jns.1995.83.1.0133
更新日期:1995-07-01 00:00:00