title: Primary Extradural Meningioma Presenting as Frontal Sinusitis with Extensive Bony Changes: Case report.
abstract: Primary extradural meningiomas are rare tumours and calvarial meningiomas with extensive bony changes and frontal sinusitis are rarer still. We report a 40-year-old female patient who presented to the otorhinolaryngologist at the Sultan Qaboos University Hospital in Muscat, Oman, in October 2013 with headaches and frontal swelling. She was diagnosed with frontal sinusitis complicated by osteomyelitis. Further clinical examination and imaging revealed a left frontal calvarial meningioma with extensive bony changes and extracalvarial extension into the frontal sinus. She underwent a left frontal craniotomy during which the tumour was removed. The postoperative period was uneventful and a follow-up computed tomography scan after three months showed only postoperative changes. This report discusses the radiological differential diagnosis and management of this type of lesion.
authors.affiliation: Departments of Surgery, Sultan Qaboos University Hospital, Muscat, Oman.
authors.forename: Rajeev
authors.initials: R
authors.lastname: Kariyattil
authors.affiliation: Departments of Surgery, Sultan Qaboos University Hospital, Muscat, Oman.
authors.forename: Venkatesh
authors.initials: V
authors.lastname: Govindaraju
authors.affiliation: Radiology & Molecular Imaging, Sultan Qaboos University Hospital, Muscat, Oman.
authors.forename: Rana S
authors.initials: RS
authors.lastname: Hamid
authors.affiliation: Departments of Surgery, Sultan Qaboos University Hospital, Muscat, Oman.
authors.forename: Muthukuttiparambil
authors.initials: M
authors.lastname: Unnikrishnan
keywords: Calvarial Hyperostosis; Case Report; Meningioma; Neoplasm Invasiveness; Oman