A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes

Abstract

Background:Intracranial tumors with heterogeneous histopathology are a well-described pathologic entity. Pathologically, distinct tumors in direct contact with one another, also known as collision tumors are exceptionally rare, and collision between meningioma subtypes has not been previously described in the literature.Case Description:A 79-year-old female with a history of breast carcinoma presenting with visual and motor deficits and imaging/intraoperative findings consistent with separate, distinct lesions. Histopathologic findings provided evidence for a collision between World Health Organization Grade III anaplastic and papillary meningioma.Conclusion:We report a possible collision tumor between two separate meningioma subtypes based on the unique radiologic, intraoperative, and histopathologic findings. Submission of multiple pathologic specimens during surgical resection is key for accurate histopathologic diagnosis.

A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes

“…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.…”

Coexistence of craniopharyngioma and meningioma

“…tumor-tumor metastasis, defined as metastasis of cancer cells to another cancer. In addition, 2 of the following criteria [ 10 ] must be met: (a) the pathological findings were that the donor metastasis must be partially enclosed by a recipient benign primary neoplasm of the brain; (b) the metastatic neoplasm must originate from a known primary carcinoma.…”

Erratum: A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes

“…In the article titled, “A rare intracranial tumor consisting of malignant anaplastic and papillary meningioma subtypes” published in page 21, issue 1, vol. 7 of Surgical Neurology International[ 1 ], the name and the affiliation of the third author “Hussein Alnajar” is missing. The affiliation is “Department of Pathology, Rush University Medical Center, Chicago, IL, USA”.…”