Olfactory groove meningioma: surgical techniques and pitfalls

Gindi, S. El

doi:10.1016/s0090-3019(00)00346-3

Cited by 47 publications

(33 citation statements)

References 2 publications

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“…Some surgeons reported that they prefer to define the surgical approaches as pterional and subfrontal based on the localization of the tumor (27). Some other surgeons prefer to use either a pterional (10,20,27), unilateral or bilateral subfrontal approach regardless of the localization of the tumor (3,5,7,11,14,18,19,25). Al Mefty (2) and Babu et al (3) combined orbital osteotomy with the unilateral frontal approach.…”

Section: Resultsmentioning

confidence: 99%

unilateral frontal interhemispheric transfalcial approaches for the removal of olfactory groove meningiomas

Müslüman¹,

Yılmaz²,

R³

et al. 2011

Turkish Neurosurgery

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AIm: A unilateral subfrontal interhemispheric transfalcial approach for the removal of olfactory groove meningiomas (OGM) was evaluated in terms of surgical technique, complications, clinical outcomes, and recurrence rate. mAterIAl and methOds: Twenty-four females and eighteen males with a mean age of 59 years were operated on for OGM within a 12-year (1996-2008) period. The pre-and post-operative Mini-Mental Test (MMT) scores, visual impairment scores (VIS), pre-operative clinical symptoms (headache, epileptic seizure and anosmia), Karnofsky performance scores (KPS), tumor size and tumor extensions were evaluated. The effects of the pre-operative parameters on post-operative MMT, VIS and KPS were investigated. results:Tumor size and pre-operative MMT significantly affected pre-operative KPS. Mean tumor diameter was 5.6±0.8 cm. Total excision was achieved in 97.6% of all cases. No peri-operative mortality was seen. Ten patients (23.8%) experienced surgery-related complications. The mean follow-up period of cases was 52 months, and the rate of residual tumor re-growth was 2.3%. No parameter showed any effect on post-operative KPS, as no significant difference was seen between pre-and post-operative KPS. A significant positive difference was detected between pre-and post-operative MMT and VIS.COnClusIOn: A unilateral subfrontal interhemispheric transfalcial approach can be the preferred modality for treating OGM. BulGulAr: Tümör boyutu ve ameliyat öncesi MMT ameliyat öncesi KPS nu anlamlı etkiledi. Ortalama tümör çapı 5.6 ± 0.8 cm idi. Total eksizyon olguların % 97.6 sında sağlandı. Peri-operatif mortalite görülmedi. On hastada (% 23.8) cerrahiye bağlı istenmeyen durum meydana geldi. Olguların ortalama takip süresi 52 aydı, nüks oranı% 2.3 idi. Ameliyat öncesi ve sonrası KPS arasında anlamlı bir fark görülmedi. Hiçbir parametre, post-operatif KPS üzerine anlamlı bir etki göstermedi. Anlamlı pozitif fark ameliyat öncesi ve sonrası MMT ve VIS arasında tespit edildi.sOnuÇ: Tek taraflı subfrontal interhemisferik transfalcian yaklaşım OOM tedavisi için tercih edilebilecek yöntem olabilir.

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Section: Resultsmentioning

confidence: 99%

unilateral frontal interhemispheric transfalcial approaches for the removal of olfactory groove meningiomas

Müslüman¹,

Yılmaz²,

R³

et al. 2011

Turkish Neurosurgery

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“…OGMs arise over the cribriform plate and frontosphenoid suture, predominantly in the midline, but they may extend more to one side. They can reach the ethmoid sinuses, the nasal cavity, or the orbit (5). Common clinical presentations of OGMs are: personality changes, headache, visual manifestations, incontinence and FosterKennedy syndrome (1).…”

Section: Introductionmentioning

confidence: 99%

“…The common surgical approaches to midline anterior skull base lesions are: the standard pterional, the subfrontal, and the anterior interhemispheric approaches. When considering any approach, the following goals should be targeted: early interruption of the tumor blood supply, careful separation of the frontal lobes from the tumor; dissection of the important structures mainly the anterior cerebral arteries, optic nerves, and chiasm; and adequate visualization of the anterior cranial fossa floor to allow total tumor excision and repair of skull base defects (2,5).…”

Section: Introductionmentioning

confidence: 99%

Surgical management of midline anterior skull base meningiomas: experience of 30 cases

Refaat

Eissa²,

Ali³

2014

Turkish Neurosurgery

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AIM:Midline anterior skull base meningiomas include olfactory groove meningiomas (OGMs), Tuberculum Sellae meningiomas (TSMs), and planum sphenoidale meningiomas (PSMs). The main surgical challenge in treating these lesions is to excise the tumor totally without causing mortality or morbidity. Studying the clinical patterns and the surgical outcomes of these lesions. MATErIAL and METHods:Thirty cases of midline anterior skull base lesions were included in our study. Patients were operated upon by four routes: (i) unilateral subfrontal, (ii) bilateral subfrontal, (iii) frontotemporal approach, and (iv) bifrontal basal interhemispheric. Extent of resection was classified according to the Simpson grading system. The functional outcome of the patients was assessed by comparing the preoperative and the postoperative neurological examination, as well as the Karnofsky performance scale. rEsuLTs:We had 14 OGMs (46.7%), 9 TSMs (30%), and 7 PSMs (23.3%). The most commonly utilized approach was the subfrontal approach (unilateral or bilateral) in 80% of the cases, followed by the pterional approach in 16.6% of the cases. Total removal was achieved in 86.7% of the cases; subtotal excision was achieved in 13.3% of the cases. 41.2% of our cases showed postoperative clinical improvement. We had two mortalities in our study, representing 6.7%. We did not detect any tumor recurrences in our follow up. The median preoperative Karnofsky scale was 85, while the median postoperative Karnofsky scale was 90.CoNCLusIoN: Midline anterior skull base lesions are becoming amenable for total surgical excision with minimal morbidities and mortalities. Most preferred surgical routes are the subfrontal and the pterional approaches.KEywords: Olfactory groove meningiomas, Planum sphenoidale meningiomas, Tuberculum sellae meningiomas, Simpson grade ÖZ AMAÇ: Orta hat anterior kafa kaidesinin menenjiyomları olfaktör oluk menenjiyomları (OOM'ler), tüberkulum sella menenjiyomları (TSM'ler) ve planum sfenoidale menenjiyomları (PSM'leri) içerir. Bu lezyonların tedavisindeki ana cerrahi zorluk tümörün herhangi bir mortalite veya morbiditeye neden olmadan tümüyle eksizyonudur. Bu lezyonların klinik paternleri ve cerrahi sonuçları çalışılmıştır. yÖNTEM ve GErEÇLEr: Çalışmaya otuz orta hat anterior kafa kaidesi lezyonu dahil edilmiştir. Hastalar dört yolla ameliyat edilmiştir: (i) ünilateral subfrontal, (ii) bilateral subfrontal, (iii) frontotemporal yaklaşım ve (iv) bifrontal bazal interhemisferik. Rezeksiyon kapsamı Simpson derecelendirme sistemine göre sınıflandırılmıştır. Hastaların işlevsel sonucu preoperatif ve postoperatif nörolojik muayenenin ve Karnofsky performans ölçeği sonuçlarının karşılaştırılmasıyla değerlendirilmiştir.BuLGuLAr: 14 OOM (%46,7), 9 TSM (%30) ve 7 PSM (%23,3) mevcuttur. En sık kullanılan yaklaşım, olguların %80'inde kullanılan subfrontal yaklaşım (unilateral veya bilateral) olmuş ve bunu olguların %16,6'sında pterional yaklaşım takip etmiştir. Total eksizyon olguların %86,7'sinde ve subtotal eksizyon %13,3'ünde elde ed...

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“…Pediatric meningiomas are rare and account for 1.4–4% of pediatric intracranial neoplasms [1, 4, 5, 7, 8]and are usually seen in association with neurofibromatosis type 2 or following radiation therapy [3]. They differ significantly from their adult counterparts by being larger at the time of presentation, their higher frequency of cystic changes, the relatively common infratentorial location, and the propensity for intraventricular location [1].…”

Section: Introductionmentioning

confidence: 99%

“…Planum sphenoidale meningiomas can extend inferiorly into the ethmoidal and sphenoidal sinuses, resulting in destruction of the bones of the anterior cranial fossa [7, 8]. Total resection of these lesions is of paramount importance to prevent recurrence, especially in young children given the hazards of radiation therapy.…”

Section: Introductionmentioning

confidence: 99%

A Large Planum sphenoidale Meningioma with Sinonasal Extension in a Child

et al. 2003

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Anterior cranial base meningiomas are rare tumors in children. Due to the extensive involvement of orbit, paranasal sinuses, midface, and anterior skull base, a multidisciplinary approach is warranted. We present a case of a child with a large planum sphenoidale meningioma extending into subfrontal region, ethmoid and maxillary sinuses inferiorly, and orbits laterally. The patient, a 4-year-old girl, presented with long-standing nasal stuffiness and swelling of the midface. An extended frontobasal approach through a bifrontal craniotomy was used to resect the intracranial portion of this mass. The tumor had eroded through nasal septum, medial orbital walls, and left maxilla, structures which were not readily accessible from a cranial approach alone. A modified Weber-Ferguson incision was used for a transfacial approach to resect the residual mass below the skull base. The advantages of combining the bifrontal craniotomy with a transfacial split provided the added exposure to maximize the extent of resection.

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Olfactory groove meningioma: surgical techniques and pitfalls

Cited by 47 publications

References 2 publications

unilateral frontal interhemispheric transfalcial approaches for the removal of olfactory groove meningiomas

unilateral frontal interhemispheric transfalcial approaches for the removal of olfactory groove meningiomas

Surgical management of midline anterior skull base meningiomas: experience of 30 cases

A Large Planum sphenoidale Meningioma with Sinonasal Extension in a Child

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