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A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes
Tayfun Hakan
  1. Okan University, The Vocational School of Health Services, Tuzla
  2. Kolan International Hospital, Neurosurgery Clinic, Şişli, İstanbul, Turkey

Correspondence Address:
Tayfun Hakan
Okan University, The Vocational School of Health Services, Tuzla
Kolan International Hospital, Neurosurgery Clinic, Şişli, İstanbul, Turkey

DOI:10.4103/2152-7806.183740

Copyright: © 2016 Surgical Neurology International This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

How to cite this article: Hakan T. A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes. Surg Neurol Int 09-Jun-2016;7:64

How to cite this URL: Hakan T. A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes. Surg Neurol Int 09-Jun-2016;7:64. Available from: http://surgicalneurologyint.com/surgicalint_articles/a-rare-intracranial-tumor-consisting-of-malignant-anaplastic-and-papillary-meningioma-subtypes-2/

Date of Submission
11-Mar-2016

Date of Acceptance
27-Apr-2016

Date of Web Publication
09-Jun-2016

Sir,

I read with great interest the paper by Kochanski et al.[ 2 ] describing a case of a rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes. As mentioned, multiple intracranial meningiomas and meningiomas showing collision with other intracranial tumors such as astrocytoma and metastatic tumors are well known pathologies. Indeed, coincidence of meningiomas with different radiological findings and histological types are very rare entities. We have previously reported a coincidence of two intracranial meningiomas—a myxomatous metaplastic meningioma (myxoid meningioma) grade 1 (WHO-93) and a psammamotous meningioma grade 1 (WHO-93)—in a 65-year-old man.[ 1 ] The tumors were located on the greater wing sphenoid bone and at the level of the precentral gyrus in the left temporoparietal region, respectively. The tumor that was diagnosed as myxoid meningioma was showing hyperintensity in T2-weighted magnetic resonance imaging sequences; and the other tumor was showing hypointensity in all pulse sequences.

Multiple meningiomas with the same histopathological diagnoses with multicentric localizations may be due to spreading via cerebrospinal fluid or venous structures; however, the origin of the multiple tumors of different histological type should have independent pathogenesis. In the presence of lesions with different imaging features and/or different operative findings suggestive of separate histological diagnosis, the removal of all components and examination of the whole surgical specimens have more importance.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

References

1. Hakan T, Aker FV, Celik L, Tasali N. Intracranial multiple meningiomas with different radiological findings and histological types (Online). Eurorad-European Association of Radiology, Intracranial multiple meningiomas with different radiological findings and histological types. p.

2. Kochanski RB, Byrne N, Arvanitis L, Bhabad S, Byrne RW. A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes. Surg Neurol Int. 2016. 7: 21-

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