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Rosette-forming glioneuronal tumor mimicking foramen Monro colloid cyst: Case presentation and systematic literature review.
World Neurosurg
January 2025
"Carol Davila" University of Medicine and Pharmacy, Bd. Eroii Sanitari 8, 050474, Bucharest, Romania; Central Military Emergency Hospital "Dr. Carol Davila", Neurosurgical Department, Street Calea Plevnei 134, 010825, Bucharest. Electronic address:
Posterior Fossa Stereotactic Biopsy with Leksell Vantage Frame-Case Series and Review of Literature.
J Clin Med
January 2025
Department of Neurosurgery, University Medical Centre Maribor, 2000 Maribor, Slovenia.
Stereotactic biopsy of posterior fossa lesions, which are often inoperable, enables a safe trajectory and provides tissue samples for accurate diagnosis, which is crucial for correct treatment since the latest World Health Organization Classification of Tumors of the Central Nervous System from 2021 places immense emphasis on molecular diagnostics. Stereotactic biopsy using the Leksell Vantage headframe is, due to its rigid design, extremely accurate, but stiffer, making the procedure more challenging and the learning curve steeper. This retrospective analysis demonstrates the introduction of the new Leksell Vantage headframe in day-to-day practice at the University Medical Center in Maribor, Slovenia, in demanding procedures of posterior fossa biopsies, and also provides a review of the literature available on the topic with emphasis on the technical aspect of posterior fossa biopsy using the Leksell Vantage headframe in adults.
View Article and Find Full Text PDFA glioneuronal tumor with neurocytic rosettes harboring FGFR1 internal tandem duplication - A report of a unique case.
Neuropathology
November 2024
Department of Neurosurgery and Neurooncology, 1st Medical Faculty, Charles University, Military University Hospital Prague, Prague, Czech Republic.
Rosette-forming glioneuronal tumors (RGNTs) with FGFR1 tyrosine kinase domain internal tandem duplication (FGFR1 ITD) is exceedingly rare, with only a few cases reported in the literature. Hereby we present a case of a tumor with RGNT morphology occurring in area of septum pellucidum of 43-year-old male. The tumor showed FGFR1 ITD, no PIK3CA, PIK3R1 or NF1 alterations and inconclusive methylation profile with match for class of "low-grade glial/glioneuronal/neuroepithelial tumors".
View Article and Find Full Text PDFThe Clinical and Molecular Landscape of Rosette-Forming Glioneuronal Tumors.
Biomedicines
October 2024
Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai 200030, China.
Background: Rosette-Forming Glioneuronal Tumors (RGNTs) are rare, typically benign central nervous system tumors primarily located in the fourth ventricle and pineal region. Despite being classified as WHO grade I with generally favorable prognoses, RGNTs present complexities in their molecular mechanisms, occasional malignant transformation, and epidemiological characteristics that require further investigation.
Method: This study systematically reviews the existing literature to analyze the epidemiological patterns, MRI characteristics, pathological features, diagnostic challenges, and molecular mechanisms associated with RGNTs, aiming to provide a comprehensive theoretical foundation for clinical practice and future research.
FGFR1 wild-type rosette-forming glioneuronal tumours.
Acta Neuropathol
August 2024
Pathology Department, Toulouse University Hospital, Toulouse, France.
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