scholarly journals Lhermitte–Duclos Disease Mimicking Cerebellopontine Angle Tumor: A Case Report

2021 ◽  
Author(s):  
Bilal Abbasoglu ◽  
Murat Zaimoglu ◽  
Umit Eroglu ◽  
Cevriye Cansiz Ersoz ◽  
Ayhan Attar
Keyword(s):  
Case Report ◽  
White Matter ◽  
Cerebellar Cortex ◽  
Cerebellopontine Angle ◽  
Good Prognosis ◽  
Dysplastic Gangliocytoma ◽  
Cerebellopontine Angle Tumor ◽  
Cerebellopontine Angle Tumors ◽  
T1 Contrast ◽  
The Brain

AbstractLhermitte-Duclos disease (LDD) is dysplastic gangliocytoma of the cerebellum, which is rare, tends to grow slowly, usually has good prognosis, and wherein the cerebellar cortex becomes thick and the central white matter is not observed. On MRI of the brain, it has hyperintense and hypointense presentations on T2- and T1-weighted scans, respectively. It has nonhomogenous contrasting pattern on T1-contrast scans. LDD can be seen unilaterally or bilaterally in the cerebellum. When the disease is located at the cerebellopontine angle, it can be mistaken for the tumors located in this region. Recurrence can occur postoperatively, which is rare. The present case is a rare one because the tumor was located at the cerebellopontine angle and radiologically mimicked cerebellopontine angle tumors.

Cerebellopontine Angle Tumor Causing Contralateral Trigeminal Neuralgia: A Case Report

Neurosurgery ◽  
1987 ◽  
Vol 21 (1) ◽  
pp. 84-86 ◽  
Author(s):  
Robert B. Snow ◽  
Richard A. R. Fraser
Keyword(s):  
Case Report ◽  
Trigeminal Neuralgia ◽  
Cerebellopontine Angle ◽  
Acoustic Neurinoma ◽  
Cerebellopontine Angle Tumor ◽  
Cerebellopontine Angle Tumors

Abstract A case of trigeminal neuralgia caused by a contralateral acoustic neurinoma is reported. The patient's tic pain was completely alleviated after removal of the tumor. Previously reported cases of trigeminal neuralgia caused by contralateral cerebellopontine angle tumors are reviewed, and the pathophysiology of this disorder is discussed. (Neurosurgery 21: 84-86, 1987)

THE METABOLISM OF NORMAL BRAIN AND HUMAN GLIOMAS IN RELATION TO CELL TYPE AND DENSITY

1955 ◽  
Vol 33 (3) ◽  
pp. 395-403 ◽  
Author(s):  
Irving H. Heller ◽  
K. A. C. Elliott
Keyword(s):  
Cerebral Cortex ◽  
White Matter ◽  
Brain Tumors ◽  
Corpus Callosum ◽  
Oxygen Uptake ◽  
Glial Cells ◽  
Cerebellar Cortex ◽  
Unit Weight ◽  
Uptake Rates ◽  
The Brain

Per unit weight, cerebral and cerebellar cortex respire much more actively than corpus callosum. The rate per cell nucleus is highest in cerebral cortex, lower in corpus callosum, and still lower in cerebellar cortex. The oxygen uptake rates of the brain tumors studied, with the exception of an oligodendroglioma, were about the same as that of white matter on the weight basis but lower than that of cerebral cortex or white matter on the cell basis. In agreement with previous work, an oligodendroglioma respired much more actively than the other tumors. The rates of glycolysis of the brain tumors per unit weight were low but, relative to their respiration rate, glycolysis was higher than in normal gray or white matter. Consideration of the figures obtained leads to the following tentative conclusions: Glial cells of corpus callosum respire more actively than the neurons of the cerebellar cortex. Neurons of the cerebral cortex respire on the average much more actively than neurons of the cerebellar cortex or glial cells. Considerably more than 70% of the oxygen uptake by cerebral cortex is due to neurons. The oxygen uptake rates of normal oligodendroglia and astrocytes are probably about the same as the rates found per nucleus in an oligodendroglioma and in astrocytomas; oligodendroglia respire much more actively than astrocytes.

scholarly journals Posterior reversible encephalopathy syndrome: A case report

2015 ◽  
Vol 72 (8) ◽  
pp. 735-739
Author(s):  
Dejan Kostic ◽  
Biljana Brkic-Georgievski ◽  
Aleksandar Jovanovski ◽  
Smiljana Kostic ◽  
Drazen Ivetic ◽  
...  
Keyword(s):  
Case Report ◽  
White Matter ◽  
Posterior Reversible Encephalopathy Syndrome ◽  
Impaired Consciousness ◽  
Posterior Reversible Encephalopathy ◽  
Neurological Signs ◽  
Appropriate Treatment ◽  
History Of ◽  
Reversible Encephalopathy ◽  
The Brain

Posterior reversible encephalopathy syndrome (PRES) is characterized by the following symptoms: seizures, impaired consciousness and/or vision, vomiting, nausea, and focal neurological signs. Diagnostic imaging includes examination by magnetic resonance (MR) and computed tomography (CT), where brain edema is visualized bi-laterally and symmetrically, predominantly posteriorly, parietally, and occipitally. Case report. We presented a 73-year-old patient with the years-long medical history of hipertension and renal insufficiency, who developed PRES with the symptomatology of the rear cranium. CT and MR verified changes in the white matter involving all lobes on both sides of the brain. After a two-week treatment (antihypertensive, hypolipemic and rehydration therapy) clinical improvement with no complications occurred, with complete resolution of changes in the white matter observed on CT and MR. Conclusion. PRES is a reversible syndrome in which the symptoms withdraw after several days to several weeks if early diagnosis is made and appropriate treatment started without delay.

scholarly journals Pelizaeus-Merzbacher Disease: A Case Report

2020 ◽  
Author(s):  
Ghazaleh Jamalipour Soufi ◽  
Siavash Iravan
Keyword(s):  
Case Report ◽  
White Matter ◽  
Brain Mri ◽  
Brain Magnetic Resonance Imaging ◽  
Proteolipid Protein ◽  
Radiology Department ◽  
Magnetic Resonance Imaging Mri ◽  
Normal White Matter ◽  
Pelizaeus Merzbacher Disease ◽  
The Brain

Pelizaeus-Merzbacher Disease (PMD), as a rare genetically x-linked leukodystrophy, is a disorder of proteolipid protein expression in myelin formation. This disorder is clinically presented by neurodevelopmental delay and abnormal pendular eye movements. The responsible gene for this disorder is the proteolipid protein gene (PLP1). Our case was a oneyear-old boy referred to the radiology department for evaluating the Central Nervous System (CNS) development by brain Magnetic Resonance Imaging (MRI). Clinically, he demonstrated neuro-developmental delay symptoms. The brain MRI results indicated a diffuse lack of normal white matter myelination. This case report should be considered about the possibilityof PMD in the brain MRI of patients who present a diffuse arrest of normal white matter myelination.

scholarly journals Impact of Balance Training and Co-ordination Exercises in Post-Operative Left Cerebellopontine Angle Tumor: A Case Report

2021 ◽  
pp. 413-416
Author(s):  
Aditi Akhuj ◽  
Snehal Samal ◽  
Rakesh Krishna Kovela ◽  
Ragini Dagal ◽  
Rebecca Thimoty
Keyword(s):  
Case Report ◽  
Acoustic Neuroma ◽  
Cerebellopontine Angle ◽  
Balance Training ◽  
Case Presentation ◽  
Cerebellopontine Angle Tumor ◽  
Acoustic Neuromas ◽  
Tumor Management ◽  
Mild Impairment

Introduction: Acoustic neuromas are most common tumors of CP angle, accounting more than 90% of all such tumors. Meningioma, primary cholesteratoma and facial nerve schwanoma are the different type of tumors. Acoustic neuroma is a benign tumor situates in CP angle which has a fibrous growth and originates from the division of vestibulochochlear nerve. Aim: Impact of Balance Training and Co-ordination Exercises in Post-Operative Left Cerebellopontine Angle Tumor Case Presentation: A 40 year old male with right hand dominance was referred to physiotherapy department. On examination he presented mild impairment in balance and co-ordination, assisted walking. Discussion: This case report is an important to the published literature on rehabilitation of a patient witha CPA tumor, as it presents the sequential management in the patients post CPA tumor. Conclusion: Acoustic neuroma is most common CPA tumor. Management of CPA tumor is important to improve quality of life. As per the reference articles and the exercises planned can progressively improve balance and co-ordination of patients.

scholarly journals Fusion of quantitative susceptibility maps and T1-weighted images improve brain tissue contrast in primates

2021 ◽  
Author(s):  
Rakshit Dadarwal ◽  
Michael Ortiz-Rios ◽  
Susann Boretius
Keyword(s):  
White Matter ◽  
Brain Tissue ◽  
Brain Structures ◽  
Macaque Monkey ◽  
List Type ◽  
Subcortical Structures ◽  
Tissue Segmentation ◽  
Tissue Contrast ◽  
T1 Contrast ◽  
The Brain

AbstractRecent progress in quantitative susceptibility mapping (QSM) has enabled the accurate delineation of submillimeter scale subcortical brain structures in humans. QSM reflects the magnetic susceptibility arising from the spatial distribution of iron, myelin, and calcium in the brain. The simultaneous visualization of cortical, subcortical, and white matter structure remains, however, challenging, utilizing QSM data solely. Here we present TQ-SILiCON, a fusion method that enhances the contrast of cortical and subcortical structures and provides an excellent white matter delineation by combining QSM and conventional T1-weighted (T1w) images. In this study, we first established QSM in the macaque monkey to map iron-rich subcortical structures. Implementing the same QSM acquisition and analyses methods allowed a similar accurate delineation of subcortical structures in humans. Moreover, applying automatic brain tissue segmentation to TQ-SILiCON images of the macaque improved the classification of the brain tissue types as compared to the single T1 contrast. Furthermore, we validate our dual-contrast fusion approach in humans and similarly demonstrate improvements in automated segmentation of cortical and subcortical structures. We believe the proposed contrast will facilitate translational studies in non-human primates to investigate the pathophysiology of neurodegenerative diseases that affect the subcortical structures of the basal ganglia in humans.HighlightsThe subcortical gray matter areas of macaque monkeys are reliably mapped by QSM, much as they are in humans.Combining T1w and QSM images improves the visualization and segmentation of white matter, cortical and subcortical structures in the macaque monkey.The proposed dual contrast TQ-SILiCON provides a similar image quality also in humans.TQ-SILiCON facilitates comparative and translational neuroscience studies investigating subcortical structures.

scholarly journals Hemorrhagic Epidermoid Cyst in Cerebellar Vermis: Case Report and Review of the Literature

2021 ◽  
Vol 82 (01) ◽  
pp. e6-e10
Author(s):  
Ján Kozák ◽  
Jozef Šurkala ◽  
Martin Novotný ◽  
Marián Švajdler
Keyword(s):  
Case Report ◽  
Epidermoid Cyst ◽  
Cerebellopontine Angle ◽  
Review Of The Literature ◽  
Basal Surface ◽  
Parasellar Region ◽  
Benign Nature ◽  
Intracranial Epidermoid ◽  
Slow Growing ◽  
The Brain

AbstractIntracranial epidermoid cysts are slow growing congenital avascular neoplasms that spread across the basal surface of the brain. They most commonly occur in the paramedial region in the cerebellopontine angle and the parasellar region. Despite its generally benign nature, sporadically they can be accompanied with hemorrhage or very rarely undergo malignant transformation. The authors present a case report of a patient with a hemorrhagic vermian epidermoid cyst and a review of all published similar cases.

scholarly journals Surgical Outcomes of Cerebellopontine Angle Tumors in 34 Cases

Pulse ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 8-14 ◽  
Author(s):  
Md Aliuzzaman Joarder ◽  
AKM Bazlul Karim ◽  
Shariful Islam Sujon ◽  
Nahid Akhter ◽  
Md Waheeduzzaman ◽  
...  
Keyword(s):  
Facial Nerve ◽  
Vestibular Schwannoma ◽  
Cerebellopontine Angle ◽  
Csf Leak ◽  
Radical Excision ◽  
Nerve Function ◽  
Facial Nerve Function ◽  
Lower Cranial Nerve ◽  
Cerebellopontine Angle Tumor ◽  
Cerebellopontine Angle Tumors

Introduction: Cerebellopontine angle tumors are a surgical challenge to many neurosurgeons who want to operate in this space. Although most of these tumors are benign, they are a challenge because of the complex anatomy and important neurovascular structures that traverse this space. Most common cerebellopontine angle tumor is vestibular schwannoma. The management of these cases is essentially surgical. There has been a change in the surgical strategy over the years from simple intratumoral decompression to complete microsurgical excision, to radical excision with facial nerve and hearing preservation.Objectives: To study the clinical and radiological characteristics, know the pathological types and determine the surgical resectability and outcome of cerebellopontine angle tumor.Materials and Methods: It is a retrospective study done in the department of Neurosurgery, Apollo Hospitals Dhaka. 34 patients diagnosed with cerebellopontine angle tumor were recruited into the study.Results: Among 34 cases of cerebellopontine angle tumors vestibular schwannoma alone constituted 79%. Most of the tumors were large or giant tumors. Total resection was done in 25% of vestibular schwannoma and 50% of meningiomas. Anatomical preservation of facial nerve was achieved in 73% of patients. Facial nerve function as measured by the House Brackmann system. Postoperatively 61% had a score of 1 or 2; 29% had a score of 3 or 4; and 8% had a score of 5 or 6. Other complications included 2 cases of CSF leak, 3 cases of meningitis, 2 cases of lower cranial nerve palsy and 1 patient died.Conclusion: Cerebellopontine angle tumors show high incidence from 3rd to 5th decade with common symptoms being hearing loss and ataxia. Most of the patients presented at a delayed stage with large to giant tumors with no useful hearing. Sub total excision with keeping anterior part of tumor for preserving facial nerve function is the goal.Pulse Vol.8 January-December 2015 p.8-14

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