Retrosigmoid Approach for Resection of Cerebellar Peduncle Cavernoma

J Neurol Surg B DOI: 10.1055/s-0038-1669974The case described in this video involved a 38-year-old man, who presented with a 4-week history of worsening acute-onset headache, nausea, double vision, and vertigo. On examination, he had impaired tandem gait and diplopia on right horizontal gaze. A computed tomography (CT) scan revealed a hyperdense lesion of the right cerebellopontine angle. Magnetic resonance imaging (MRI) revealed a nonenhancing middle cerebellar peduncle lesion that was isointense on T2-weighed imaging and hypointense on FLAIR imaging (Fig. 1A–B). The differential diagnoses for this lesion included cavernous malformation, thrombosed aneurysm, and neurocysticercosis. CT angiography was done preoperatively to rule out cerebral aneurysm. Surgical resection of the lesion was recommended to relieve his symptoms, to prevent further deterioration/bleeding, and to obtain a pathological diagnosis. The patient underwent a right retrosigmoid craniotomy for resection of the right middle cerebellar peduncle cavernoma (Fig. 2). The patient tolerated the procedure well with no new postoperative neurological deficit. Postoperative MRI depicted gross total resection of the lesion and expected residual blood in the resection cavity (Fig. 1C–D). The patient was discharged home on postoperative day 4. At his last follow-up appointment, 1 month after surgery, he reported complete resolution of his preoperative symptoms, including diplopia. The patient gave cons...
Source: Journal of Neurological Surgery Part B: Skull Base - Category: Neurosurgery Authors: Tags: Skull Base: Operative Videos Source Type: research

Related Links:

ConclusionsThis case series demonstrates that the use of a high frequency jet ventilator for cardiac MRI was feasible, safe, providing good quality cardiac imaging and avoiding anesthesia personnel to be inside the hazardous environment of MRI room. Future studies are needed to confirm its safety and efficiency in pediatric patients.ResumoJustificativa e objetivosA ressonância magnética (RM) cardíaca é uma técnica utilizada na avaliação de crianças com cardiopatias congênitas. A anestesia geral garante imobilidade, especialmente em pacientes não cooperador...
Source: Brazilian Journal of Anesthesiology - Category: Anesthesiology Source Type: research
Publication date: Available online 12 October 2019Source: Revista Española de Medicina Nuclear e Imagen Molecular (English Edition)Author(s): Q. Xu, M. Lv, Y. Xia, Y. Zhao, W. Zhang, Y. ChenAbstractA 42-year-old woman presented with a ten-day history of dysphagia, slight chest pain and occasional vomiting. With the performance of thoracic and abdominal enhanced computed tomography (CT) and upper gastrointestinal contrast, once esophageal cancer was suspected. Significant activity mass in esophagus and mediastinal lymph nodes could be found on the imaging of 18F-FDG PET/CT, which also supported malignancy. However, T...
Source: Revista Espanola de Medicina Nuclear e Imagen Molecular - Category: Nuclear Medicine Source Type: research
Publication date: Available online 12 October 2019Source: Materials Today: ProceedingsAuthor(s): A. Saikiran, M. Vivekanand, M. Prahalad, S. Yuvan, N. RameshbabuAbstractMicrowave synthesis of nanocrystalline Zn/Mg substituted and Zn/Mg-F co-substituted hydroxyapatites is reported in this study. Substitution of Zn/Mg is expected to increase the bioactivity, whereas the fluorine substitution is aimed for the attainment of chemical and thermal stability of the hydroxyapatite. The thermal stability of the nanopowders was studied by annealing the samples at 900 °C for 2 h. The phase composition and crystallite size of t...
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research
Publication date: Available online 12 October 2019Source: Materials Today CommunicationsAuthor(s): John Michael Tesha, Derrick S. Dlamini, Zhenyu Cui, Jianxin LiAbstractPolysulfone (PSF) and Styrene Maleic Anhydride (SMA) were blended by thermally induced phase separation method in the preparation of membranes for water treatment. Dipropylene Glycol Dibenzoate (DPGDB) was used as a diluent which was extracted using ethanol. The increase in SMA concentration was positively confirmed by monitoring the intensity of the peak at 1779 cm−1 characteristic to CO in the Attenuated Total Reflectance Fourier Transform In...
Source: Materials Today Communications - Category: Materials Science Source Type: research
Publication date: Available online 12 October 2019Source: Materials Today CommunicationsAuthor(s): Joby Jacob, Gregary Peter, Sabu Thomas, Józef T. Haponiuk, Sreeraj GopiAbstractBionanocomposites prepared from green sources are a promising research area and cellulose nanofibers obtained from agro-waste of ginger rhizomes and their different composites with starch, chitosan (CS) and polyvinyl alcohol (PVA) have exhibited enormous mechanical as well as antimicrobial properties. This paper reports the synthesis of magnetic ginger nanofiber (M-GNF) reinforced composite films with CS, PVA and potato starch (PS) by Fe3O4 ...
Source: Materials Today Communications - Category: Materials Science Source Type: research
ConclusionsPKD can be a manifestation of PFBC, and brain calcification may be a cause of secondary PKD. So thoroughly evaluation including head CT or genetic screening for paroxysmal dyskinesia and PFBC should be applied before the diagnosis of PKD or PFBC. Moreover, negative brain calcification may not exclude the possibility of PFBC. The possible pathogenesis of primary calcification lie in the dysfunction of the protein or defective signal transduction caused by the mutations.
Source: Neuroscience Letters - Category: Neuroscience Source Type: research
Publication date: 1 January 2020Source: NeuroImage, Volume 204Author(s): Rebecca S. Dewey, Susan T. Francis, Hannah Guest, Garreth Prendergast, Rebecca E. Millman, Christopher J. Plack, Deborah A. HallAbstractIn animal models, exposure to high noise levels can cause permanent damage to hair-cell synapses (cochlear synaptopathy) for high-threshold auditory nerve fibers without affecting sensitivity to quiet sounds. This has been confirmed in several mammalian species, but the hypothesis that lifetime noise exposure affects auditory function in humans with normal audiometric thresholds remains unconfirmed and current evidenc...
Source: NeuroImage - Category: Neuroscience Source Type: research
We report significant links between the rate of neuroplastic change of cortical surface anatomy, and children's early mathematical skills. In particular, most of the behavioral variance (about 73%) of children's visuospatial abilities was explained by the change in cortical thickness in the right superior parietal cortex. Moreover, half of the behavioral variance (about 55%) of children's arithmetic abilities was explained by the change in cortical folding in the right intraparietal sulcus. Additional associations for arithmetic abilities were found for cortical thickness change of the right temporal lobe, and the left mid...
Source: NeuroImage - Category: Neuroscience Source Type: research
uml;s E Abstract Cerebral amyloid angiopathy (CAA) is most commonly recognized by β-amyloid deposition in the small and medium sized vessels of the brain. The 71-year-old female presented with a sudden onset of vertigo and headache. By native computer tomography (CT) examination we found cerebral atrophy and the sign of chronic vascular injury. The complaints of the patient worsened, thus magnetic resonance imaging (MRI) was performed. The MRI scan revealed a bleeding transformation of an ischemic lesion in the right occipital region. On the susceptibility weighted scans we could observe old microbleedings, t...
Source: Orvosi Hetilap - Category: General Medicine Authors: Tags: Orv Hetil Source Type: research
Conclusion. Knowledge of atypical presentations is a must for early diagnosis and timely intervention to prevent life-threatening complications. PMID: 28025597 [PubMed]
Source: Journal of Tropical Medicine - Category: Tropical Medicine Tags: J Trop Med Source Type: research
More News: Angiography | Bleeding | Brain | Craniotomy | CT Scan | Headache | Migraine | MRI Scan | Neurology | Neurosurgery | PET Scan | Vertigo