The educational objectives for this self-assessment module are for the participant to exercise, self-assess, and improve his or her understanding of the imaging features of cerebellopontine angle (CPA) masses and the role of advanced MRI in the differential diagnosis of CPA masses.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2214/AJR.09.7191 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Peritumoral Hyperintense Signal on Post-contrast FLAIR Images Surrounding Vestibular Schwannomas Following Stereotactic Radiosurgery.
AJNR Am J Neuroradiol
January 2025
From the Department of Radiology (S.TN., J.C.B., G.B., P.J.F., J.I.L.), and Department of Otolaryngology-Head and Neck Surgery and Neurologic Surgery (M.L.C., M.J.L.), Mayo Clinic, Rochester, Minnesota, USA.
Background And Purpose: Prior investigations have noted the presence of peritumoral hyperintense signal (a "halo") around vestibular schwannomas on postcontrast 3D T2 FLAIR images. This study evaluated this phenomenon in a cohort of patients undergoing stereotactic radiosurgery.
Materials And Methods: A retrospective review was completed of consecutive patients with presumed vestibular schwannomas undergoing stereotactic radiosurgery.
Post-operative vestibular function outcomes evaluated by video Head Impulse Test in patients with non-vestibular schwannoma cerebellopontine angle tumors.
Auris Nasus Larynx
January 2025
Department of Otolaryngology-Head & Neck Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-Ku, N15W7, Sapporo 0608638, Hokkaido, Japan.
Objectives: To evaluate post-operative semicircular canal function in patients with non-vestibular schwannoma (VS) cerebellopontine angle (CPA) tumors by video Head Impulse Test (vHIT).
Methods: Fourteen patients with non-VS CPA tumors who underwent surgery. The gain in vestibulo-ocular reflex (VOR) was examined pre- and post-operatively for the semicircular canals in patients with non-VS CPA tumors.
Hemorrhagic Risk in Vestibular Schwannoma Surgeries: Insights and Implications.
Med Sci Monit
December 2024
Department of Neurosurgery, Celal Bayar University Faculty of Medicine, Manisa, Turkey.
BACKGROUND Vestibular schwannoma is a slow-growing benign tumor arising from the 8th cranial nerve. It can originate in the cerebellopontine angle (CPA). This retrospective study aimed to investigate the factors associated with outcomes following surgical resection of vestibular schwannoma in the CPA in 30 patients at a single center in Turkey, focusing on postoperative intratumoral hemorrhage.
View Article and Find Full Text PDFThe "Outline Sign": Thin Hyperenhancing Perimeter as an MR Imaging Feature of Meningioma. A Useful Tool in the Temporal Bone Region for Differentiating Meningiomas from Schwannomas and Paragangliomas.
AJNR Am J Neuroradiol
January 2025
Department of Radiology (K.L.R, L.V.R., A.F.J.), Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
Background And Purpose: This study investigates the practicality and utility of the "outline sign," which refers to the thin curvilinear hyperenhancing line that may be seen along the margin of a meningioma on a spin-echo postcontrast T1-weighted image. For cases in which the differential diagnosis may include other tumors, visualization of the outline sign may help to increase the diagnostic confidence for a meningioma. Therefore, in the temporal bone region such as the cerebellopontine angle or jugular foramen, where differential considerations may include a schwannoma or paraganglioma, we additionally investigated whether the outline sign may be observed in these nonmeningioma lesions.
View Article and Find Full Text PDFAdult Cerebellopontine Angle Medulloblastoma: A Systematic Review of Clinical Features, Management Approaches, and Patient Outcomes.
Cancers (Basel)
December 2024
Department of Neurosurgery, University of Oklahoma Health Sciences Center, 1000 N. Lincoln Ave. #4000, Oklahoma City, OK 73104, USA.
Objective: The aim of this study was to systematically review the existing individual patient data in the literature on adult cerebellopontine angle (CPA) medulloblastoma (MB) and characterize the patient presentation, management strategies used, and oncological outcomes of this rare entity to guide future clinical practice.
Methods: Following PRISMA guidelines, a systematic review was conducted by searching PubMed, EMBASE, Web of Science, and Cochrane databases from inception to 19 June 2024. Studies regarding adult patients with histologically confirmed MB radiographically confirmed to be located in the CPA were included.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!