The authors report three cases of intraparenchymatous neuroepithelial cysts, which did not communicate with the ventricular system and the subarachnoid space. They were located in (1) the right frontal lobe, (2) the left cerebral peduncle and pons, and (3) the right cerebellar hemisphere. All of them were asymptomatic, despite their volume and location, and presented as incidental autopsy findings. A developmental origin is likely for these non-neoplastic cysts.
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http://dx.doi.org/10.1007/BF00685253 | DOI Listing |
Ann Anat
November 2020
Departamento de Morfología y Biología Celular, Grupo SINPOS, Universidad de Oviedo, Spain; Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Santiago de Chile, Chile. Electronic address:
Background: The Chievitz's organ or juxta-oral organ is a mysterious bilateral structure, phylogenetically preserved, which develops from the mouth epithelium as an invagination that loses connection to it in the prenatal period. It is located laterally to the walls of the oral cavity in an imprecise anatomical location and receives abundant innervation from the buccal nerve. Structurally it consists of non-keratinizing squamous-like neuroepithelial cells surrounded by two layers of connective tissue with nerve fibers and different morphotypes of sensory corpuscles.
View Article and Find Full Text PDFCase Rep Pathol
September 2012
Neurosurgical Service, Hospital Puerta de Hierro-Majadahonda, 28222 Madrid, Spain ; Neuroscience Research Unit, Hospital Puerta de Hierro-Majadahonda, 28222 Madrid, Spain.
Dysembryoplastic neuroepithelial tumor (DNT) is a benign neoplasm with typical supratentorial location, but the possibility of these rare tumors can also be located in the posterior fossa must be taken into account. We report a 21-year-old woman that suffered gait instability, headache, and diplopia. On CT-scan, an intraparenchymatous cerebellar tumor was disclosed.
View Article and Find Full Text PDFP R Health Sci J
March 2009
Department of Neurosurgery, Clínica Ntra. Sra. de la Concepción (Fundación Jiménez Diaz), Universidad Autónoma Madrid, España.
The authors report four patients suffering from multicentric intraparenchymatous malignant glioma lesions located in different regions of the brain. The incidence of multiple, separated, independent, non-connected neuroepithelial tumors in the same patient is rare, although a discrepancy exists in the literature with regard to its real incidence. There is also controversy with respect to the histological composition of these tumors.
View Article and Find Full Text PDFSurg Neurol
March 2006
Department of Neurosurgery, Rouen University Hospital-Charles Nicolle, 76031 Rouen Cedex, France.
Background: Primary diffuse leptomeningeal gliomatosis is an exceptional neoplasm, and only 30 cases have been reported in the literature. We report a recent case and compare data with previously published observations.
Methods: A 50-year-old man was admitted to the neurosurgery department for a previous 4-month history of headache, associated with nonspecific neurological signs.
The authors report three cases of intraparenchymatous neuroepithelial cysts, which did not communicate with the ventricular system and the subarachnoid space. They were located in (1) the right frontal lobe, (2) the left cerebral peduncle and pons, and (3) the right cerebellar hemisphere. All of them were asymptomatic, despite their volume and location, and presented as incidental autopsy findings.
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