Meningioma

A rare, mostly benign, primary tumor of the meninges (arachnoid cap cells), usually located in the supratentorial compartment, commonly appearing in the sixth and seventh decade of life, clinically silent in most cases or causing hyperostosis close to the tumor and resulting in focal bulging and localized pain in less than 10% of cases. Additional features may include headache, seizures, gradual personality changes (apathy and dementia), anosmia, impaired vision, exophthalmos, hearing loss, ataxia, dysmetria, hypotonia, nystagmus, and rarely spontaneous bleeding.

Primitive neuroectodermal tumor

A tumor that originates in cells from the primitive neural crest. This group of tumors is characteirzed by the presence of primitive cells with elements of neuronal and/or glial differentiation.


Total: 8

                       


(per page)
PMID (PMCID)
26315005
 MIXED_SAMPLE Adult
Comparison of endoscope- versus microscope-assisted resection of deep-seated intracranial lesions using a minimally invasive port retractor system.
Hong CS, Prevedello DM, Elder JB.
J Neurosurg. 2016;124(3):799-810.
The pathological entities of the resected tissues included metastatic tumors (8 patients), glioma (7), meningioma (1), neurocytoma (1), radiation necrosis (1), primitive neuroectodermal tumor (1), and hemangioblastoma (1).
25972941
(4421947)
 OTHER
Intraparenchymal anaplastic meningioma in a child: A rare entity.
Nayil K, Makhdoomi R, Malik R, Ramzan A.
Asian J Neurosurg. 2015;10(2):111-3.
We report a case of intraparenchymal meningioma in a child who was operated with a preoperative impression of a primitive neuroectodermal tumor.
26752826
(4693396)
 OTHER
Primary spinal primitive neuroectodermal tumor on MR imaging.
Thoriya PJ, Watal P, Bahri NU, Rathod K.
Indian J Radiol Imaging. 2015;25(4):459-63.
The differentials reported for this entity are nerve sheath tumor, meningioma, paraganglioma, intradural metastases, lymphoma, other varieties of ependymoma, subependymoma, astrocytoma, ganglioglioma, hemangioblastoma, and primitive neuroectodermal tumor (PNET).
19931170
 MALE Infant
Primary intracranial extra-axial and supratentorial atypical rhabdoid tumor.
Bing F, Nugues F, Grand S, Bessou P, Salon C.
Pediatr Neurol. 2009;41(6):453-6.
Based on the patient's age and imaging features (perfusion, diffusion magnetic resonance imaging, and magnetic resonance spectroscopy), a diagnosis of atypical teratoid/rhabdoid tumor was more accurate than diagnoses of meningioma and primitive neuroectodermal tumor.
17069697
 MALE Adult
[Clinicopathologic and immunohistochemical study of atypical teratoid/rhabdoid tumor of central nervous system].
Wang Z, Fan QH, Yu MN, Zhang WM.
Zhonghua Bing Li Xue Za Zhi. 2006;35(8):458-61.
It needs to be distinguished from a number of central nervous system tumors, including medulloblastoma, primitive neuroectodermal tumor, germ cell neoplasm and rhabdoid meningioma.
12670052
 FEMALE Adult
Primitive neuroectodermal tumor in the cerebellopontine angle with isochromosome 17q presenting as meningioma in a woman 26 years of age.
Izycka-Swieszewska E, Debiec-Rychter M, Kloc W.
Clin Neuropathol. 2003;22(2):66-70.
Primitive neuroectodermal tumor in the cerebellopontine angle with isochromosome 17q presenting as meningioma in a woman 26 years of age.
9576675
 FEMALE Adult
Exophytic primitive neuroectodermal tumor of the spinal cord.
Papadatos D, Albrecht S, Mohr G, del Carpio-O'Donovan R.
AJNR Am J Neuroradiol. 1998;19(4):787-9.
We present a case of an exophytic spinal primitive neuroectodermal tumor that, radiologically, simulated an extramedullary nerve sheath tumor, meningioma, or metastatic tumor deposit.
9805360
 MALE
Meningeal melanocytoma: a case report and literature review.
Alameda F, Lloreta J, Galito E, Roquer J, Serrano S.
Ultrastruct Pathol. 1998;22(4):349-56.
Meningeal melanocytoma is an uncommon tumor that must be distinguished from metastatic or primary malignant melanoma, meningeal melanocytic nevi, pigmented meningioma, pigmented schwannoma or neurofibroma, and pigmented primitive neuroectodermal tumor.