Primary Extracranial Meningioma of Paranasal Sinuses

Jeon

et al. 2018

Arch Craniofac Surg

Meningioma originates from arachnoid cap cells and is the second most common intracranial tumor; however, it can also be found in an extracranial location. A very rare primary extracranial meningioma without the presence of an intracranial component has also been reported. Primary extracranial meningiomas have been found in the skin, scalp, middle ear, and nasal cavity. A computerized tomography or magnetic resonance imaging scan is necessary to determine the presence or absence of an intracranial meningioma, and a biopsy is essential for diagnosis. We report a case of primary extracranial meningioma located in the forehead skin of a 51-year-old male.

Section: Discussionmentioning

confidence: 99%

Primary extracranial meningioma presenting as a forehead mass

Jeon

et al. 2018

Arch Craniofac Surg

“…1 It is an extremely rare disease entity, with a limited number of case reports or series. 2,[8][9][10][11][12][13][14][15][16] Most TBMs develop as extensions of primary intracranial tumors, with common pathways for extension including the tegmen tympani, posterior petrous ridge, jugular bulb, internal auditory canal, and the sulci of the greater and lesser superficial petrosal nerves. 17,18 Blank areas indicate that results were not described.…”

Section: Introductionmentioning

confidence: 99%

Clinicoradiologic Characteristics of Temporal Bone Meningioma: Multicenter Retrospective Analysis

et al. 2020

Objectives/Hypothesis Meningioma is a neoplasm arising from cells related to the arachnoid villi. The aim of the present study was to explore the clinical and radiological characteristics of temporal bone meningioma (TBM) in a multicenter cohort. Study Design Retrospective cohort study. Methods Thirteen patients diagnosed with TBM at eight medical institutes between 1998 and 2018 were retrospectively enrolled. The clinical procedures, symptoms, signs, and images that led to the diagnosis of TBM were investigated for all patients. Results The most common symptom at the initial visit was hearing loss (n = 12/13, 92.3%). All patients exhibited unilateral TBMs with varied symptom durations (1–60 months). Four patients presented masses occupying the external auditory canal; the tympanic membrane (TM) could not be evaluated. The other nine patients did not show TM perforation despite the presence of inflammatory signs. The majority of patients exhibited unilateral conductive or mixed hearing loss. A retrospective review of temporal bone computed tomography (TBCT) images revealed findings suggestive of a tumor in all patients. However, three patients had been misdiagnosed with chronic otitis media and were subjected to tympanomastoidectomy (n = 3/7, 42.9%). TBCT findings that suggested TBM included diffuse trabecular hyperostosis in the middle and posterior cranial fossae and widening and destruction of the temporal bone in the jugular bulb area. Conclusions TBM should be suspected if patients exhibit persistent inflammatory symptoms or signs involving intact TM or unilateral conductive or mixed hearing loss with trabecular hyperostosis or destruction of the temporal bone on computed tomography images. Level of Evidence 4 Laryngoscope, 131:173–178, 2021

“…The rst reported case of primary extradural meningioma of sinonasal region dates back to 1730 when it was rst reported then by Johann (2) Salzmann. In India, There have been case reports reported with a (4) series of three cases being the largest series by Ranjan G. Aiyer etal but not much of the case reports and literature available in post CT era. Only few of these reported cases presented as proptosis.…”

Section: Introductionmentioning

confidence: 99%

Primary Extradural Sinonasal Meningioma With Proptosis as Presentation : A Rare Case Report With Review of Literature

Panchariya¹,

Modi²,

Nazir³

et al. 2020

ijsr

Meningiomas are one of the common brain tumours which have origin for arachnoid cap cells. Extradural meningiomas are rarer variants classified into primary and secondary in nature based on their source of origin. The common location of primary extradural meningiomas is head and neck with paranasal sinuses being a common site in head and neck. The treatment of choice lies with complete excision of tumour which usually follows a good prognosis and low rates of recurrences. Current literature is scarce about primary extradural meningiomas with majority being case reports or short case series only. We here present a case report of a primary extradural meningioma of right frontal and ethmoidal sinus treated by surgical excision. This case report adds on to the current knowledge of literature about primary extradural meningiomas. Summary A 28 year old male presented with chief complaints of right eye proptosis and right frontal headache with no neurological deficit reported to our centre with a trans nasal biopsy report of his lesion done elsewhere to be psamomatous meningioma Grade I. On reviewing his MRI Brain and paranasal sinuses, a totally extradural space occupying lesion in right frontal and ethmoidal sinuses communicating into intracranial cavity pushing right frontal lobe up and extending into roof of right orbit was found. Patient underwent right frontal craniotomy with complete excision of tumour with subsidence of proptosis in immediate post operative period. Primary extradural meningiomas are rare entities with scarce literature available. We write this case report to add on to current literature available and also briefly discuss the literature review known currently.