Results 221 to 230 of about 327,511 (299)

Management of Meningeal Neoplasms: Meningiomas and Hemangiopericytomas

Current Treatment Options in Oncology, 2011
Meningiomas are the most frequently diagnosed primary brain tumor accounting for nearly one third of all primary brain and central nervous system tumors reported in the United States. According to the 2007 World Health Organization classification scheme, Grade I meningiomas are benign, Grade II defines atypical lesions, while Grade III meningiomas are ...
Zanetta S. Lamar, Glenn J. Lesser
semanticscholar   +4 more sources

Chromosome abnormalities in meningeal neoplasms: Do they correlate with histology?

Cancer Genetics and Cytogenetics, 1994
Thirty-three meningeal neoplasms were karyotyped, and the results were compared with histologic features. Thirteen neoplasms had no discernible abnormality or sex chromosome loss only; nine had monosomy or structural abnormality involving only chromosome 22; and 11 had other chromosome abnormalities with or without chromosome 22 involvement. Histologic
Constance A. Griffin, Ralph H. Hruban, Patricia P. Long, Nava Miller, Peggy Volz, Benjamin S. Carson, Henry Brem   +6 more
semanticscholar   +5 more sources

Analysis of the inflammatory tumor microenvironment in meningeal neoplasms

Clinical Neuropathology, 2020
Properties of the inflammatory tumor microenvironment are associated with disease subtype, grade, and prognosis in various cancer entities. As immune-modulatory therapies are currently being explored in patients with meningeal neoplasms, we investigated their inflammatory microenvironment (meningiomas and solitary fibrous tumor/hemangiopericytoma (SFT ...
Anna S. Berghoff, Philip Kresl, Orsolya Rajky, Georg Widhalm, Gerda Ricken, Johannes A. Hainfellner, Christine Marosi, Peter Birner, Matthias Preusser   +8 more
semanticscholar   +5 more sources

Cerebrospinal fluid findings in patients with hematologic neoplasms and meningeal infiltration

Acta Neurologica Belgica, 2020
Neoplastic cell infiltration into the central nervous system (CNS) is a serious complication of hematological neoplasms. Cytomorphology (CM) and flow cytometry (FC) have been used to detect meningeal infiltration. The association between CSF findings with the results of CM and FC is still poorly understood.
Renán Barros Domingues, Fernando Brunale Vilela de Moura Leite, Carlos Senne   +2 more
semanticscholar   +5 more sources

Meningeal neoplasms associated with cerebral vascular malformations

Surgical Neurology, 1987
Two patients with meningeal neoplasms and nearby vascular anomalies are reported. The lesions were excised and histologically confirmed. One patient had a meningotheliomatous meningioma and an arteriovenous malformation involving the right frontal lobe; the other, a hemangiopericytoma and an arteriovenous malformation in the right parietooccipital ...
S Bitoh, Hiroshi Hasegawa, Amami Kato, Kazuyoshi Tamura, Eiichiro Mabuchi, Yasushi Kobayashi   +5 more
semanticscholar   +5 more sources

COMPUTED TOMOGRAPHY OF DISSEMINATED MENINGEAL AND EPENDYMAL MALIGNANT NEOPLASMS

Neurology, 1981
We studied computed tomography (CT) scans of 50 patients with clinical signs and symptoms compatible with disseminated meningeal tumor, all documented by cerebrospinal fluid cytology, surgical biopsy or autopsy. Twenty-three patients also had nuclear scans, and 13 had cerebral angiograms.
George F. Ascherl, S. K. Hilal, Ronald Brisman, N. Reed Dunnick   +3 more
semanticscholar   +9 more sources

Meningeal and ependymal abnormalities associated with cranial neoplasms: MR findings [PDF]

, 1991
Cranial MR studies of patients with histologically proven neoplasms and intracranial enhancing lesions or involvement of cranial vault were assessed for abnormalities of leptomeninges. Segmental or generalized thickening of the membranes, and intraventricular nodules were most frequently observed.
George Krol, Brian W. Simons, A B Haimes
semanticscholar   +3 more sources

Comment on “Analysis of the inflammatory tumor microenvironment in meningeal neoplasms”

Clinical Neuropathology, 2021
Sai Batchu, Siyuan Yu
semanticscholar   +4 more sources

Accuracy of flow cytometry and cytomorphology for the diagnosis of meningeal involvement in lymphoid neoplasms: A systematic review

Diagnostic Cytopathology, 2016
Central nervous system (CNS) involvement by lymphoid neoplasms is a relatively infrequent event that demands accurate identification. The purpose of this article is to review studies comparing diagnostic accuracy of flow cytometry (FCM) and cytomorphology (CM) for meningeal involvement from lymphoid neoplasms.
Simone Canovi, Daniele Campioli
semanticscholar   +5 more sources