Clinical Neuroscience

Incidental intracranial lipomas: Assessment of 163 patients

TÜRK Okan1, YALDIZ Can2

MARCH 30, 2019

Clinical Neuroscience - 2019;72(03-04)

DOI: https://doi.org/10.18071/isz.72.0089

Intracranial lipomas (ILs) are rare congenital lesions which consist 0.1-0.5% of intracranial lesions. They are usually asymptomatic. Our serial of 163 patients is the largest IL serial in literature. Files of the patients who were diagnosed with IL at outpatient clinic of neurosurgery between 2009 and 2018 were screened retrospectively. A total of 163 patients were detected to have been diagnosed with IL according to radiologic findings between 2009 and 2018. Of the patients, 96 were female and 67 were male. Intracranial lipomas are self-limited, slowly growing benign lesions which do not cause a mass effect. We believe that the present study would be a main source due to the currently available insufficient number of studies in literature.

AFFILIATIONS

  1. Department of Neurosurgery, Istanbul Training and Research Hospital, Istanbul, Turkey
  2. Department of Neurosurgery, Sakarya Training and Research Hospital, Sakarya, Turkey

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Further articles in this publication

Clinical Neuroscience

EEG-based connectivity in patients with partial seizures with and without generalization

DÖMÖTÖR Johanna, CLEMENS Béla, EMRI Miklós, PUSKÁS Szilvia, FEKETE István

Objective - to investigate the neurophysiological basis of secondary generalization of partial epileptic seizures. Patients and methods - inter-ictal, resting-state EEG functional connectivity (EEGfC) was evaluated and compared: patients with exclusively simple partial seizures (sp group) were compared to patients with simple partial and secondary generalized seizures (spsg group); patients with exclusively complex partial seizures (cp group) were compared to patients with cp and secondary generalized seizures (cpsg group); the collapsed sp+cp group (spcp) was compared to those who had exclusively secondary generalized seizures (sg group). EEGfC was computed from 21-channel waking EEG. 3 minutes of waking EEG background activity was analyzed by the LORETA Source Correlation (LSC) software. Current source density time series were computed for 23 pre-defined cortical regions (ROI) in each hemisphere, for the 1-25 Hz very narrow bands (1 Hz bandwidth). Thereafter Pearson correlation coefficients were calculated between all pairs of ROI time series in the same hemisphere. Z-scored correlation coefficients were compared at the group level (t-tests and correction for multiple comparisons by local false discovery rate, FDR). Results - Statistically significant (corrected p<0.05) EEGfC differences emerged at specific frequencies (spsg > sg; cpsg > cp), and at many frequencies (sg > spcp). The findings indicated increased coupling between motor cortices and several non-motor areas in patients with partial and sg seizures as compared to patients with partial seizures and no sg seizures. Further findings suggested increased coupling between medial parietal-occipital areas (structural core of the cortex) and lateral hemispheric areas. Conclusion - increased inter-ictal EEGfC is associated with habitual occurrence of secondary generalized seizures.

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Introduction - Syncope is defined as a brief transient loss of consciousness due to cerebral hypoperfusion. Although the diagnosis of syncope is based on a thorough history and examination, electroencaphalography (EEG) is also an important investigational tool in the differential diagnosis in this group of patients. In this study we aimed to identify the diagnostic value of EEG in patients with syncope. Methods - We retrospectively examined EEG recordings of 288 patients with the diagnosis of syncope referred to the Cankiri State Hospital EEG laboratory, from January 2014 to January 2016. The EEG findings were classified into 6 groups as normal, epileptiform discharges (spike and sharp waves), generalized background slowing, focal slowing, hemispherical asymmetries, and low amplitude EEG tracing. The EEGs were separated according to gender and age. Results - Total of 288 patients were included in this study, 148 were females (51.4%) and 140 (48.6%) were males. Among all the EEG reports, 203 (70.5%) were normal, 8 of them (2.8%) showed generalized background slowing and 7 (2.4%) demonstrated focal slow waves. Epileptiform discharges occured among 13 patients (4.5%). Hemispherical asymmetries were detected in 10 patients (3.5%) and low amplitude EEG tracing in 47 patients (16.3%). There was no significant difference between age groups in EEG findings (p=0.3). Also no significant difference was detected in EEG results by gender (p=0.2). Discussion - Although the diagnosis of syncope, epilepsy and non-epileptic seizures is clinical diagnosis, EEG still remains additional method

Clinical Neuroscience

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Clinical Neuroscience

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Clinical Neuroscience

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[Introduction, the aim of article - The spinal meningeomas are one of the most common types of spinal tumors. In the treatment of spinal meningeomas, the surgical removal is the gold standard method. There are many factors that have impacts on surgical outcomes such as age, preoperative neurological condition, the extent of resection and histological grade. The aim of our article is to analyze surgical experiences, prognostic features and long-term surgical outcomes of spinal meningeomas. Patients and methods - Retrospective database of surgically treated patients with spinal meningeomas between 2008 and 2016 was made in the National Institute of Clinical Neuroscience, Budapest, Hungary. Demographic data, preoperative neurological symptoms, radiological discrepancies, pathological results (histology, grade), types of treatments and postoperative results were examined. All of our patients were followed clinically and radiologically in the postoperative courses. Results - All of the 153 patients were surgically treated. We have examined 112 women and 41 men. The average age of the patients was 65.5 years. In 98.7% of the cases, the postoperative control examinations (postoperative 6th week) showed a significant improvement in sensorial and motorial functions. The neurological improvements were evident right after the surgeries. In 2 cases (1.30%), no changes were observed in the preoperative symptoms. Recurrence was noticed in 4 cases (2.61%). Conclusion - According to our results, the spinal meningeomas can be sufficiently treated with early diagnosis and total surgical removal. Most of the patients become asymptomatic and the rate of recurrence is quite low.]

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