An Atypical Meningioma Presenting at an Unusual Site

Abstract

Meningiomas are tumours that originate from the arachnoid cells (meningocytes) and the majority are benign grade I tumours according to World Health Organisation (WHO). Chordoid meningioma is an uncommon variant of meningioma and corresponds to grade II tumour in WHO classification of tumours of the Nervous System 2016, because of its more aggressive behaviour and increased likelihood of recurrence. These meningiomas may appear extracranially (i.e. head and neck region, sinonasal tract, ear, temporal bone, scalp, etc) in only 2% cases. The histopathological and immunohistochemical evaluation is usually diagnostic. Here, the authors present a case of Chordoid meningioma in a 32-year-old patient who presented with complaints of nasal obstruction clinically suspected to be due to nasal polyp.

Keywords

• aggressive tumour
• chordoid meningioma
• immunohistochemistry