Preferences and Utilities for Health States after Treatment of Olfactory Groove Meningioma: Endoscopic versus Open.
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ABSTRACT:
SUBMITTER: Yao CM
PROVIDER: S-EPMC5515664 | biostudies-literature | 2017 Aug
REPOSITORIES: biostudies-literature
Publications
Preferences and Utilities for Health States after Treatment of Olfactory Groove Meningioma: Endoscopic versus Open.
Yao Christopher M CM Kahane Alyssa A Monteiro Eric E Gentili Fred F Zadeh Gelareh G de Almeida John R JR
Journal of neurological surgery. Part B, Skull base 20170217 4
<b>Objectives</b> The purpose of this study is to report health utility scores for patients with olfactory groove meningiomas (OGM) treated with either the standard transcranial approach, or the expanded endonasal endoscopic approach. <b>Design</b> The time trade-off technique was used to derive health utility scores. <b>Setting</b> Healthy individuals without skull base tumors were surveyed. <b>Main Outcome Measures</b> Participants reviewed and rated scenarios describing treatment (endosco ...[more]
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Project description:Introduction Schwannoma of the olfactory groove is an extremely rare tumor that can share a differential diagnosis with meningioma or neuroblastoma. Objectives The authors present a case of giant schwannoma involving the anterior cranial fossa and ethmoid sinuses. Case Report The patient presented with a 30-month history of left nasal obstruction, anosmia, and sporadic ipsilateral bleeding. Computed tomography of the paranasal sinuses revealed expansive lesion on the left nasal cavity extending to nasopharynx up to ethmoid and sphenoid sinuses bilaterally with intraorbital and parasellar extension to the skull base. Magnetic resonance imaging scan confirmed the expansive tumor without dural penetration. Biopsy revealed no evidence of malignancy and probable neural cell. Bifrontal craniotomy was performed combined with lateral rhinotomy (Weber-Ferguson approach), and the lesion was totally removed. The tumor measured 8.0 × 4.3 × 3.7 cm and microscopically appeared as a schwannoma composed of interwoven bundles of elongated cells (Antoni A regions) mixed with less cellular regions (Antoni B). Immunohistochemical study stained intensively for vimentin and S-100. Conclusion Schwannomas of the olfactory groove are extremely rare, and the findings of origin of this tumor is still uncertain but recent studies point most probably to the meningeal branches of trigeminal nerve or anterior ethmoidal nerves.
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