title: Chordoid meningioma, part of a multiple intracranial meningioma: a case report & review.
abstract: Chordoid meningioma, classified as atypical meningioma according to the World Health Organisation (WHO) classification, is a rare subtype, which represents only 0.5% of all meningiomas and is associated with a high incidence of recurrence. Multiple intracranial meningiomas are rare in non-neurofibromatosis patients. We present a female patient with both of these rare types of meningioma. The patient presented with two concurrent intracranial meningiomas, with one a meningotheliomatous subtype and the other a chordoid meningioma. Given the wide array of histological differential diagnoses in chordoid meningioma, immunohistochemistry has a significant role to play in differentiating them. Recurrence in chordoid meningioma can be generally predicted based on the extent of resection, the percentage of chordoid element, and proliferation indices.
authors.affiliation: Department of Neurosurgery, Queen Elizabeth Hospital 2, Lorong Bersatu, Off Jalan Damai, 88300 Luyang, Kota Kinabalu, Sabah, Malaysia.
authors.forename: Prabu Rau
authors.initials: PR
authors.lastname: Sriram
keywords: benign meningioma; immunohistochemistry; meningotheliomatous meningioma; multiple meningiomas; recurrent brain tumor
references.citation: Am J Surg Pathol. 2009 May;33(5):669-81
references.pmid: 19194275
references.citation: Lancet Neurol. 2006 Dec;5(12):1045-54
references.pmid: 17110285
references.citation: Acta Cytol. 2004 May-Jun;48(3):397-401
references.pmid: 15192958
references.citation: Arq Neuropsiquiatr. 2008 Sep;66(3B):702-7
references.pmid: 18949266
references.citation: Am J Surg Pathol. 2000 Jul;24(7):899-905
references.pmid: 10895812
references.citation: Brain Tumor Pathol. 2000;17(3):153-7
references.pmid: 11310923
references.citation: J Neurooncol. 2010 Aug;99(1):41-8
references.pmid: 20094774