Assessment of Increased T2 Signal Activity in Patients with Cervical Spondylotic Myelopathy Undergoing Posterior Cervical Fusion.

Aim: To compare the preoperative and postoperative increased signal intensity (ISI) outcomes of cervical spondylotic myelopathy (CSM) patients who underwent posterior decompression and fusion, and to assess the correlation between ISI changes and postsurgical clinical prognosis.

Material And Methods: The results from 123 patients were evaluated. In addition to demographic data, such as age and gender, factors, including body mass index (BMI); smoking history; duration of symptoms; follow-up periods; levels of decompression and fusion; comorbidities, such as diabetes, coronary artery disease, and hypertension; ISI grading; cervical sagittal vertical axis; C2-7 cervical lordosis parameters; and Modified Japanese Orthopedic Association (mJOA) scores, were statistically analyzed preoperatively and postoperatively.

A different perspective on the dilemma of durotomy or duraplasty in Chiari type 1 malformation surgery.

Purpose: Symptomatic Chiari type 1 malformation (CIM) patients may elect to be treated; however, choosing the optimum surgical method remains problematic: posterior fossa decompression with duraplasty (PFDD) or without duraplasty (PFD). Many studies have compared these surgical methods from several perspectives. We looked at soft tissue density (STD) at the foramen magnum to add another perspective to the comparison of PFD with PFDD.

Can Dynamic Susceptibility Contrast Perfusion Imaging be Utilized to Detect Isocitrate Dehydrogenase Gene Mutation in Gliomas?

Aim: To explore the ability of dynamic susceptibility contrast perfusion imaging (DSC-PI) to detect isocitrate dehydrogenase (IDH) gene mutation in gliomas.

Material And Methods: Preoperative DSC-PI data on histopathologically proven gliomas obtained between January 2015 and December 2019 were reviewed retrospectively. All magnetic resonance imaging (MRI) examinations were performed using a 1.

Endonasal endoscopic approach for sellar metastatic pathologies: a national observation.

Purpose: Sellar metastases are rare lesions. Recent improvements in diagnosis and treatment strategies have prolonged survival but increased the probability of metastatic tumors. Evaluation with clinical symptomatology and meticulous laboratory examination is crucial.

Myelomeningocele and Kyphosis: Natural History of the Disease and the First Results of a New Surgical Technique.

Aim: To define the natural course of kyphosis, and to evaluate the efficiency of a new technique in surgical correction of kyphosis seen in myelomeningocele(MM) patients.

Material And Methods: We retrospectively reviewed our patients with MM. The rate of kyphosis, mean angle of progression and mean angle of surgical correction were evaluated.

Pediatric Calvarial Tumors: 10 Years of Clinical Experience and Differences From the Literature.

Very few studies have focused exclusively on pediatric calvarial tumors. These studies have primarily addressed the similarities of the cases with those reported in the literature, as opposed to their distinctive features. In contrast, the present study is the most detailed study conducted in the last 10 years that includes only pediatric calvarial tumors and highlights their differences according to the literature.

Corpus Callosum Lipomas in Children.

Aim: To determine the clinical and radiographical aspects of six patients diagnosed with pericallosal lipomas (PCL).

Material And Methods: A retrospective analysis of patients who presented to the neurosurgery outpatient clinics of Selcuk Faculty of Medicine between 2009 and 2019, revealed that six patients were diagnosed with PCL. The clinical and magnetic resonance imaging (MRI) data were obtained by reviewing patients? records.

Comparison of Immunogenetic Properties of Glial Tumors with Advanced Magnetic Resonance Imaging Findings.

Aim: To investigate the immunogenetic properties of glial tumors according to the World Health Organization 2016 glial tumor classification and develop an accurate diagnosis and treatment strategy by comparing preoperative advanced magnetic resonance (aMRI) technique findings of these results.

Material And Methods: This study was conducted at the Department of Neurosurgery at the Medical Faculty Hospital of Selcuk University between January 1, 2010 and January 4, 2017 and included 50 patients. MR spectroscopy (MRS), MR perfusion (PWI), and MR diffusion (DWI) were performed in 50 patients preoperatively.

Intraventricular microcystic meningioma in a child: a case report.

Background: Microcystic meningiomas are extra axial masses that are extremely rare in the pediatric population. Intraventricular meningiomas are also rarely seen. CASE PRESENTATION: This case reports an 18-year-old boy who had an intraventricular mass on magnetic resonance imaging at the age of 12 years and had shown growth at a 6-year follow-up after subtotal resection.

Iliac Artery Injury During Lumbar Disc Hernia Surgery.

Background: Vascular injury complications during lumbar discectomy are rare but potentially life-threatening. Therefore, an early diagnosis and effective treatment management is required for these complications.

Case Description: A 50-year-old female patient was admitted to our outpatient clinic with severe back and right leg pain.

Small Cell Lung Carcinoma Metastasis to Atypical Meningioma: Importance of Perfusion Magnetic Resonance Imaging Graphics in Differential Diagnosis.

We described the imaging findings of small cell lung carcinoma metastasis to atypical meningioma and the importance of magnetic resonance imaging perfusion graphics at the differential diagnosis. To be able to determine subtypes of meningiomas and differentiate whether they are malignant or benign may provide a preoperative idea to determine prognosis and surgical procedure.

Solitary Metastasis of Renal Cell Carcinoma to the Third Ventricle Mimicking a Colloid Cyst: Case Report.

Colloid cysts are the most common third ventricle lesions and metastasis to this area is rare. We presented a case of solitary metastasis from a renal cell carcinoma to the third ventricle choroid plexus mimicking a colloid cyst. A 53-year-old man, who had a history of renal cell carcinoma 12 years ago, was operated for single third ventricle lesion and hydrocephalus via a transcallosal approach.

Intracranial giant tuberculoma mimicking brain tumor: a case report.

Tuberculomas are small tumor-like lumps that can be seen, usually in large numbers, in central nervous system involvement of tuberculosis. Giant tuberculomas that are big enough to cause symptoms of compression are also encountered, though rarely. When they are really large, tuberculomas may result in increased intracranial compression, neurologic deficits, or epileptic attacks.

The Effects of Electrocautery on Peripheral Nerve: An Experimental Study.

BACKGROUND The aim of this study was to assess the usability of an electrocautery device as nerve stimulator and to investigate histopathologically the adverse effects of electrocautery at low power on rat sciatic nerves. METHODS A total of 36 female Sprague-Dawley albino rats were divided into six groups according to the power applied to their sciatic nerves (1, 2, 3, 4, 5 and 6 W, respectively). Pathologic changes were studied by microscopic examination and scored (no change = 0, mild = 1, moderate = 2, severe = 3).

Anterior transpedicular screw fixation of cervical spine: Is it safe? Morphological feasibility, technical properties, and accuracy of manual insertion.

OBJECT Due to lack of construct stability of the current anterior cervical approaches, supplemental posterior cervical approaches are frequently employed. The use of an anterior-only approach with anterior transpedicular screws (ATPSs) has been proposed as a means of providing 3-column fixation. This study was designed to investigate the feasibility of anterior transpedicular screw (ATPS) fixation of cervical spine, to obtain the morphological measurements for technical prerequisites, and to evaluate the accuracy of the ATPS using fluoroscopy.

Simultaneous transsphenoidal and transventricular endoscopic approaches for giant pituitary adenoma with hydrocephalus.

The surgical management of giant pituitary adenomas is challenging. Although most pituitary adenomas, even those with suprasellar extension, can be resected using the transsphenoidal surgery alone, the transcranial approach is still needed for approximately 1% to 4% of these tumors. The transcranial approach is usually used in large adenomas with hourglass configuration and adenomas with firm consistency impeding the adjunctive measures, which are used for delivering the suprasellar part of the tumor into the sellar area and thereby obscure the tumor resection by transsphenoidal route.

Intramedullary schwannoma of conus medullaris with syringomyelia.

Intramedullary schwannomas of the spinal cord are rare tumors. They are most commonly observed in the cervical region; however, few have been described in the conus medullaris. The association of intramedullary schwannomas with syringomyelia is also rare.

Accuracy of fluoroscopically-assisted pedicle screw placement: analysis of 1,218 screws in 198 patients.

Background Context: We retrospectively analyzed a total of 1,218 pedicle screws for accuracy, with postoperative computed tomography (CT), in 198 patients who were operated on between March 2004 and September 2012.

Purpose: To determine the incidence of screw misplacement in patients who received a transpedicular screw fixation, with intraoperative fluoroscopy in the lateral and lateral with anteroposterior (AP) positions. The results are compared between the two groups.

Resolution of papilledema after endoscopic third ventriculostomy versus cerebrospinal fluid shunting in hydrocephalus: a comparative study.

Object: In this study the authors compare the efficacy of endoscopic third ventriculostomy (ETV) versus CSF shunting for resolution of papilledema in hydrocephalus.

Methods: This comparative case series study recruited 12 patients (24 eyes) with hydrocephalus who underwent either an ETV (Group 1, 6 patients [12 eyes]) or CSF shunt treatment (Group 2, 6 patients [12 eyes]). A complete ophthalmological examination including retinal nerve fiber layer (RNFL) evaluation by optical coherence tomography was provided for all patients before surgery and in the 1st week, 1st month, and 3rd month postoperatively.

Fluorodeoxyglucose positron emission tomography/computed tomography findings in a patient with cerebellar mutism after operation in posterior fossa.

Cerebellar mutism is a transient period of speechlessness that evolves after posterior fossa surgery in children. Although direct cerebellar and brain stem injury and supratentorial dysfunction have been implicated in the mediation of mutism, the pathophysiological mechanisms involved in the evolution of this kind of mutism remain unclear. Magnetic resonance imaging revealed dentatothalamocortical tract injuries and single photon emission computed tomography showed cerebellar and cerebral hypoperfusion in patients with cerebellar mutism.

Lung adenocarcinoma metastasis to frontal sinus mimicking Pott's puffy tumor.

Metastasis of the lung adenocarcinoma to the paranasal sinuses is a rare clinical entity. We present a 75-year-old male patient who presented with swelling of the forehead and left upper eyelid with proptosis in left eye due to metastasis from lung adenocarcinoma. It appears as a puffy swelling of the forehead like a Pott's puffy tumor.

Obstructive hydrocephalus caused by giant basilar artery aneurysm.

Giant basilar artery aneurysms are rarely associated with hydrocephalus. When it occurs the treatment usually addresses the hydrocephalus rather than the aneurysm itself, especially if it is already thrombosed. The treatment options include ventriculoperitoneal shunting and endoscopic third ventriculostomy, which may be related to high complication rates.

Symptomatic pneumorrhachis.

Pneumorrhachis (PR) is the presence of air within the spinal canal, whether localized in the epidural or in the subarachnoid space. Evidence of intraspinal air, especially in the subarachnoid space, had been thought to be merely a radiological artifact of serious underlying pathology until it was proven that PRs can be related to neurologic symptoms ranging from radicular pain to serious neurologic deficits. The etiologies, pathomechanisms, and natural courses show differences from case to case, with the result that no consistent treatment strategies exist in the literature.

The effect of bevacizumab on spinal epidural fibrosis in a postlaminectomy rat model.

Aim: Spinal epidural fibrosis is an inherent result of surgical trauma after laminectomy. The conditions in which epidural fibrosis is excessive are in the etiology of failed back syndrome. There have been many attempts to prevent formation of epidural fibrosis.