Meningiomas, acoustic neuromas, and other benign extraaxial tumors have little contrast with adjacent brain tissue on conventional magnetic resonance (MR) images. The contrast enhancement produced by intravenous administration of 0.1 mmol/kg of gadolinium-DTPA in these tumors was measured on T1 MR images. Acoustic neuromas showed the greatest enhancement (average, 310%), meningiomas the next greatest (average, 180%), and neurofibromas, glomus tumors, and pituitary microadenomas the least enhancement. The degree of enhancement was almost always greater at 3 minutes than at 25 or 55 minutes. Contrast between the tumor and adjacent tissue resulted from tumor enhancement in neuromas, meningiomas, and neurofibromas and from enhancement of the surrounding tissue in pituitary microadenomas.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1148/radiology.163.2.3031727 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Intracranial Castleman's Disease Mimicking Dural-based Pathologies: A Case Report.
Curr Med Imaging
December 2024
Department of Vascular Neurosurgery, National Institute of Neurology and Neurosurgery "Manuel Velasco Suárez", 14267, Mexico City, Mexico.
Background: Castleman disease (CD) is a rare lymphoproliferative disorder, with intracranial involvement being exceedingly rare. Unicentric Castleman disease (UCD) is typically benign and localized, but its presentation can mimic other intracranial pathologies, complicating diagnosis.
Case Description: We reported a 52-year-old woman who presented with progressive headaches and language disturbances.
Cerebellopontine angle paraganglioma masquerading as vestibular schwannoma.
Pak J Med Sci
December 2024
Asif Shabbir Associate Professor, Department of Neurosurgery, Neurosurgery Unit-I, Punjab Institutes of Neurosciences Lahore, Pakistan.
Paragangliomas are slow-growing, extra-adrenal neuroendocrine tumors with rare intracranial presentation. Although benign, they can be locally aggressive tumors causing bone destruction and compression related symptoms. We report the case of a 19 years old, normotensive female who presented with headache and vertigo for the past six months.
View Article and Find Full Text PDFModified Lateral Supraorbital Craniotomy with Posterior Orbitotomy and Anterior Clinoidectomy for Resection of a Midline Planum and Tuberculum Sellae Meningioma.
J Neurol Surg Rep
October 2024
Department of Neurosurgery, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
The patient is a 51-year-old woman who had been experiencing syncope and near-syncopal events for at least 10 years with an otherwise benign neurological exam. Magnetic resonance imaging revealed an extra-axial mass consistent with a midline planum and tuberculum sellae meningioma, for which the patient opted to have resected. We demonstrate how performing a posterior orbitotomy with anterior clinoidectomy can enhance a lateral supraorbital craniotomy.
View Article and Find Full Text PDFBenign Transformation of Atypical Meningioma: A Rare Histopathological Phenomenon at Recurrence.
Case Rep Surg
December 2024
College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
Article Synopsis
- * A case study is presented about a 51-year-old woman with a Grade 2 meningioma that ultimately transformed into a Grade 1 meningioma after surgical intervention and follow-up.
- * The transformation from Grade 2 to Grade 1 meningioma is rarely documented and not well-understood, leading to insights on its natural progression and the importance of radiological and histopathological assessments in treatment planning.
Clinicopathological study of a rare neuroectodermal neoplasm of the cranium.
Childs Nerv Syst
December 2024
Department of Neuropathology, National Institute of Mental Health and Neurosciences, Hosur Road, Bengaluru, 560029, India.
Purpose: Melanotic neuroectodermal tumor of infancy (MNTI) is a rare, rapidly growing pigmented neoplasm originating from the neural crest. Predominantly affecting infants, it commonly occurs in the head and neck region. MNTI is often locally aggressive with a high recurrence rate.
View Article and Find Full Text PDFWant 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!