Computerised Tomography Guided Preoperative Localisation of Small Intracranial Lesions

1989 ◽  
Vol 3 (1) ◽  
pp. 127-130 ◽  
Author(s):  
Kwan-Hon Chan ◽  
Kirpal S. Mann ◽  
Henry Ngan
Keyword(s):  
Computerised Tomography ◽  
Intracranial Lesions ◽  
Preoperative Localisation

Benign Intracranial Lesions - Radiotherapy: An Overview of Treatment Options, Indications and Therapeutic Results

2020 ◽  
Vol 15 (2) ◽  
pp. 93-121
Author(s):  
Vasileios Tzikoulis ◽  
Areti Gkantaifi ◽  
Filippo Alongi ◽  
Nikolaos Tsoukalas ◽  
Haytham Hamed Saraireh ◽  
...  
Keyword(s):  
Effective Treatment ◽  
Treatment Modality ◽  
Radiation Effects ◽  
Treatment Options ◽  
Proton Beam Therapy ◽  
Tumor Control ◽  
Control Growth ◽  
Effective Treatment Modality ◽  
Intracranial Lesions

Background: Radiation Therapy (RT) is an established treatment option for benign intracranial lesions. The aim of this study is to display an update on the role of RT concerning the most frequent benign brain lesions and tumors. Methods: Published articles about RT and meningiomas, Vestibular Schwannomas (VSs), Pituitary Adenomas (PAs), Arteriovenous Malformations (AVMs) and craniopharyngiomas were reviewed and extracted data were used. Results: In meningiomas RT is applied as an adjuvant therapy, in case of patientrefusing surgery or in unresectable tumors. The available techniques are External Beam RT (EBRT) and stereotactic ones such as Stereotactic Radiosurgery (SRS), Fractionated Stereotactic RT (FSRT), Intensity Modulated RT (IMRT) and proton-beam therapy. The same indications are considered in PAs, in which SRS and FSRT achieve excellent tumor control rate (92-100%), acceptable hormone remission rates (>50%) and decreased Adverse Radiation Effects (AREs). Upon tumor growth or neurological deterioration, RT emerges as alone or adjuvant treatment against VSs, with SRS, FSRT, EBRT or protonbeam therapy presenting excellent tumor control growth (>90%), facial nerve (84-100%), trigeminal nerve (74-99%) and hearing (>50%) preservation. SRS poses an effective treatment modality of certain AVMs, demonstrating a 3-year obliteration rate of 80%. Lastly, a combination of microsurgery and RT presents equal local control and 5-year survival rate (>90%) but improved toxicity profile compared to total resection in case of craniopharyngiomas. Conclusion: RT comprises an effective treatment modality of benign brain and intracranial lesions. By minimizing its AREs with optimal use, RT projects as a potent tool against such diseases.

scholarly journals The use of computerised tomography in mental handicap patients

1992 ◽  
Vol 16 (10) ◽  
pp. 616-618
Author(s):  
S. K. Lekh ◽  
B. K. Puri ◽  
I. Singh
Keyword(s):  
Psychiatric Disorders ◽  
Research Tool ◽  
Clinical Neurology ◽  
Computerised Tomography ◽  
Chronic Schizophrenic ◽  
Mental Handicap ◽  
Schizophrenic Patients

Since its inception (Hounsfield, 1973), computerised tomography (CT) has become an invaluable diagnostic and research tool, particularly in clinical neurology and neurosurgery. Clinically, CT has proved useful in differentiating between ‘functional’ and ‘organic’ psychiatric disorders where it is particularly helpful in the diagnosis of potentially treatable organic disorders. For example, Owens et al (1980) found clinically unsuspected intracranial pathology in 12 of 136 chronic schizophrenic patients examined by CT and Roberts & Lishman (1984) found diagnosis, management, and/or prognosis were influenced in approximately 12% of cases referred by psychiatrists for CT imagining.

Incidence and characteristics of metastatic intracranial lesions in stage III and IV melanoma: a single institute retrospective analysis

2021 ◽  
Author(s):  
Mani Ratnesh S. Sandhu ◽  
Veronica L. Chiang ◽  
Thuy Tran ◽  
James B. Yu ◽  
Sarah Weiss ◽  
...  
Keyword(s):  
Retrospective Analysis ◽  
Stage Iii ◽  
Intracranial Lesions

scholarly journals EPID-26. CLINICAL AND HISTOLOGICAL CHARACTERIZATION OF PRIMARY CENTRAL NERVOUS SYSTEM SARCOMA IN PEDIATRICS. A SINGLE INSTITUTION EXPERIENCE IN A MIDDLE-INCOME COUNTRY

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii84-ii84
Author(s):  
Edgar Cabrera ◽  
Nelson Aponte ◽  
Johnny Garcia ◽  
Fredy Salazar ◽  
Eric Bouffet ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Pediatric Population ◽  
Progression Free Survival ◽  
Molecular Data ◽  
Middle Income ◽  
Patient Demographics ◽  
Time Period ◽  
Cell Architecture ◽  
Intracranial Lesions

Abstract INTRODUCTION Primary central nervous system (CNS) sarcomas are rare mesenchymal non-meningothelial tumors accounting for less than 0.2% of intracranial lesions. Diagnosis and management are challenging due to the current lack of substantive clinical, histological and molecular data. METHODS We retrospectively identified all patients with diagnosis of primary CNS sarcoma at the Hospital Fundación Pediatrico la Misericordia (HOMI) in Bogota, Colombia. We collected patient demographics, disease characteristics, and outcomes for analysis. RESULTS Between 2008 and 2020, twenty-four consecutive patients were diagnosed at the HOMI representing 6% of all CNS tumors diagnosed over the same time period. The median age at presentation was 9.48 years (range:1.6–13.4). The median time of symptoms prior to diagnosis was 2 weeks (0.1–24). The most common presentation was headache (21/24- 89%) and vomiting (19/24- 79%). The frontal lobe was involved in 63% of patients (15/24) and only one patient presented with a cerebellar lesion. Histologically, these tumors were characterized by a pleomorphic spindle cell architecture and high mitotic activity. All samples lacked immunoreactivity to GFAP, CD34, EMA, and S100 and all samples had strong nuclear immunopositivity for TLE-1; BCL-2 was reactive in eighteen cases. Gross total resection was attained in fifteen patients, most patients received focal radiation therapy and ICE chemotherapy. Progression-free survival at 12 and 24 months was 57% and 31% respectively. Overall survival was 77% at 12 months and 39% at 24 months. Thirteen patients relapsed, 11 presented with local failures, and 2 with intracranial recurrences outside of the radiation field. CONCLUSION Our study identifies TLE-1 as a diagnostic marker of primary CNS sarcoma, a highly malignant supratentorial tumor of childhood. Further molecular studies are urgently needed to elucidate the biology of this disease and the unusually high incidence observed in the Colombian pediatric population.

Limitations of Computerised Tomography (CT) in the Investigation of Pleural Effusion.

2009 ◽  
Author(s):  
H Bakere ◽  
T Norris ◽  
L Gillgan ◽  
P Duncan ◽  
R Berrisford ◽  
...  
Keyword(s):  
Pleural Effusion ◽  
Computerised Tomography

scholarly journals Anatomic variations of internal jugular vein, inferior petrosal sinus and its confluence pattern: Implications in inferior petrosal sinus catheterization

2015 ◽  
Vol 21 (6) ◽  
pp. 769-773 ◽  
Author(s):  
Xianli Lv ◽  
Zhongxue Wu
Keyword(s):  
Computed Tomography ◽  
Internal Jugular Vein ◽  
Jugular Vein ◽  
Treatment Strategies ◽  
Diagnosis And Treatment ◽  
Inferior Petrosal Sinus ◽  
Anatomic Variations ◽  
Review Of The Literature ◽  
Spiral Computed ◽  
Intracranial Lesions

Objective The purpose of this study is to describe anatomic variations of the internal jugular vein (IJV), inferior petrosal sinus (IPS) and their confluence pattern and implications in IPS catheterization. The anatomic route of IPS after going out of the cranium and its confluence patterns with IJV and will supply knowledge about typing of IPS-IJV junction. Method A review of the literature was performed. Results There might be different routes for entering the intracranial segment of the IPS and multislice spiral computed tomography (MSCT) is effective in identifying the confluences of the IPS with the IJV and their courses. It is important to find the confluence of IPS with IJV for diagnosis and treatment of intracranial lesions via venous route. Meanwhile, IPS diameter at the confluence can significantly affect success of catheterization. Conclusion The classification and the theory of the development of the caudal end of the IPS may be useful in establishing treatment strategies that involve endovascular manipulation via the IPS.

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