87,021 research outputs found
Ventral brainstem anatomy: An endoscopic transoral perspective
No full textIn recent years the use of the endoscope through the transclival route has gained new attention as a minimally invasive operative method to successfully treat numerous clival pathologies such as chordomas, meningiomas, haemangiopericytomas, enterogenous and epidermoid cysts, and metastasis(Cappabianca et al. Neurosurgery 55:933–940, 2004; Cappabianca et al. Childs Nerv Syst 20:796–801, 2004; Cappabianca et al. Adv Tech Stand Neurosurg 33:151–199, 2008; Cappabianca et al. Neurosurgery 49:473–475, 2001; Cappabianca et al. Surg Neurol 62:227–233, 2004; Dehdashti et al. Neurosurgery 63:299–307, 2008; Kerschbaumer et al. Spine (Phila Pa 1976) 25:2708–2715, 2000; Saito et al. Acta Neurochir (Wien) 154:879–886, 2012; Stippler et al. Neurosurgery 64:268–277, 2009). Here we describe the endoscopic anatomy of the region reached through an endoscopic transoral approach. Fresh and formalin-fixed cadaver specimens were used to demonstrate both the feasibility of an endoscopic transoral–transclival intradural approach and its potential exposure. The transoral approach was performed using a clival opening of 20 × 15 mm. This smaller access point through the clivus, which allowed insertion of the endoscope and its instruments, did not limit the complete exposure of the cisternal spaces and permitted reconstruction of all anatomical layers. This endoscopic approach thus provides excellent exposure of some of the most dangerous and inaccessible territories of the brain, respecting the anatomy and remaining a minimally invasive approach. Further extensive clinical experience is necessary to prove its safety. The endoscopic transoral–transclival approach will presumably be selected to gain access to lesions of the lower ventral brainstem and the surrounding cisternal spaces, with development of new and more efficient surgical strategies for dural and bone defect repair
Author Correction: Coronavirus disease 2019 (COVID-19) in Italy: features on chest computed tomography using a structured report system (Scientific Reports, (2020), 10, 1, (17236), 10.1038/s41598-020-73788-5)
No full textThe original version of this Article contained errors in the spelling of the authors Roberto Grassi, Roberta Fusco, Maria Paola Belfiore, Alessandro Montanelli, Gianluigi Patelli, Fabrizio Urraro, Antonella Petrillo, Vincenza Granata, Palmino Sacco, Maria Antonietta Mazzei, Beatrice Feragalli, Alfonso Reginelli & Salvatore Cappabianca which were incorrectly given as Grassi Roberto, Fusco Roberta, Belfiore Maria Paola, Montanelli Alessandro, Patelli Gianluigi, Urraro Fabrizio, Petrillo Antonella, Granata Vincenza, Sacco Palmino, Mazzei Maria Antonietta, Feragalli Beatrice, Reginelli Alfonso & Cappabianca Salvatore. These errors have now been corrected in the PDF and HTML versions of the Article
Simultaneous presentation of meningiomas with other intracranial tumours.
No full textFifteen patients with simultaneous presentation of meningiomas with other intracranial tumours are reviewed. The associated tumours included a brain metastasis in six cases, glioma in three, pituitary adenoma in two, craniopharyngioma in one,acoustic schwannoma in two and brain lymphoma in one. A correct preoperative radiological diagnosis was made in 12 patients; in three others the associated tumour was discovered at operation and by histological studies. A one-stage removal of both tumours through the same approach was performed in nine patients, whereas six others underwent two-stage operations with an interval of 1 - 13 months. The literature relating to meningiomas associated with other intracranial tumours is reviewed and the possible pathogenetic correlations are discussed. A diagnostic pitfall may occur for metastasis into a meningioma, glioma surrounding a meningioma and different suprasellar lesions. The surgical indication and management of meningiomas may be significantly influenced by the presence of another different intracranial tumour
Comment to: Cyclophosphamide-induced agenesis of cerebral aqueduct resulting in hydrocephalus in mice
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