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http://dx.doi.org/10.1097/SCS.0b013e31826689e8 | DOI Listing |
Front Oncol
December 2024
Department of Neurosurgery, Zibo Central Hospital, Zibo, China.
Meningiomas are some of the most prevalent primary brain tumors in adults, and are typically non-neuroglial in nature. A variety of symptoms may be observed, including headaches, fluctuations in mental status, ataxia, muscle weakness, nausea and vomiting, seizures, visual changes, speech disorders, and sensory abnormalities. The World Health Organization (WHO) has a grading system for meningiomas based on histological criteria, which is as follows: Grade 1 meningiomas are considered benign; Grade 2 meningiomas have a moderately aggressive nature and usually present with histological atypia; and Grade 3 meningiomas exhibit aggressive malignant behavior.
View Article and Find Full Text PDFNeurol India
July 2024
Department of Neuropathology, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", Mexico City, MEX.
Subependymal giant cell astrocytoma (SEGA), a circumscribed grade I glioma, is typically associated with tuberous sclerosis complex (TSC). However, "solitary SEGA" has been described. We performed a systematic review of available case reports and case series of solitary SEGA.
View Article and Find Full Text PDFSubependymal giant cell astrocytoma (SEGA) is a rare, slow-growing tumor with a dual (neuroglial) component that is typically associated with tuberous sclerosis complex (TSC). We present the case of a healthy 19-year-old man with mild occipital trauma followed by two weeks of intense headache, with no response to analgesics. Imaging studies revealed a well-defined tumor in the left paraventricular zone.
View Article and Find Full Text PDFRare Tumors
February 2021
Division of Pediatric Hematology/Oncology, Pediatric Department, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.
Rare pediatric tumors are heterogeneous group containing a variety of histopathological diseases, they represent approximately 10% of all childhood cancers. These rare tumors had a diversity of histology and clinical behaviors that pose different challenges to the investigators. Exploring different pediatric rare tumors.
View Article and Find Full Text PDFPLoS One
December 2019
Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil.
Cetacean morbillivirus (CeMV) is a major natural cause of morbidity and mortality in cetaceans worldwide and results in epidemic and endemic fatalities. The pathogenesis of CeMV has not been fully elucidated, and questions remain regarding tissue tropism and the mechanisms of immunosuppression. We compared the histopathologic and viral immunohistochemical features in molecularly confirmed CeMV-infected Guiana dolphins (Sotalia guianensis) from the Southwestern Atlantic (Brazil) and striped dolphins (Stenella coeruleoalba) and bottlenose dolphins (Tursiops truncatus) from the Northeast-Central Atlantic (Canary Islands, Spain) and the Western Mediterranean Sea (Italy).
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