title: An extracranial invasive meningioma mimicking malignant bone tumor - "carpet meningioma".
abstract: Meningioma is a common benign intracranial neoplasm. The incidence of an extracranial extension to other sites is rare. Due to the neglected intracranial component, the chances of an under diagnosis or a misdiagnosis of the extracranial component is there, which may adversely affect the management and therefore, the prognosis. Here, we are reporting a case of a 39 years old male patient with a preoperative probable diagnosis of a malignant bone tumour which involved the skull bone, which was made, based on the imaging studies , which was histopathologically found to be an invasive meningioma with an extensive extracranial skull vault involvement and was confirmed by immunohistochemistry. We have proposed a term, "carpet meningioma" for this extracranial invasive meningioma, because it had covered the skull vault like a carpet. The follow up studies after 1 year have revealed no evidence of a recurrence.
authors.affiliation: 3 Year Resident, Department of Pathology, Smt. NHL Municipal Medical College , Ahmedabad, Gujarat, India .
authors.forename: Sahil I
authors.initials: SI
authors.lastname: Panjvani
authors.forename: Minesh B
authors.initials: MB
authors.lastname: Gandhi
authors.forename: Ankur N
authors.initials: AN
authors.lastname: Sarvaiya
authors.forename: Bhawana R
authors.initials: BR
authors.lastname: Chaudhari
authors.forename: Garima S
authors.initials: GS
authors.lastname: Gupta
keywords: Benign; Extracranial; Intracranial; Meningioma; Neoplasm
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