Clinical suspicion towards intracranial neoplasms must be raised when longstanding. Clinical suspicion towards intracranial neoplasms must be raised when longstanding signs are present, whereas. Therefore, when the patient is diagnosed with a ogm, the size of tumor is frequently large. It is well known that most of these tumors occupy the floor of the anterior cranial fossa, extending all the way from the crista galli to the tuberculum sellae. Extension into the ethmoid sinuses has been reported to occur in 15% of patients,6. Oct 07, 2011 high signal on diffusion attributed to atypical nature of meningioma or implies to dense compact arrangement of cells. Olfactory groove and sphenoid wing meningiomas nj surgeon.
May 18, 2007 despite significant advances in neuroimaging techniques over the past 2 decades, most olfactory groove meningiomas are still very large 4 cm at the time of diagnosis. Their microscopic appearance, pathologic classification, and female preponderance reflect the characteristics of meningiomas found elsewhere. Altschul on twitter chat for world stroke day 2014 dr. Meningiomas of the skull base pdf free medical books.
Olfactory groove meningiomas ogms originate from the dura over the cribriform plate and usually grow slowly. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Olfactory groove meningioma the neurosurgical atlas, by. Olfactory groove meningiomas arise over the cribriform plate and frontosphenoid suture and comprise approximately 10% of intracranial meningiomas. Building upon recent studies emphasizing the spatially distinct mutational profiles for nf2 wildtype and mutant meningiomas, 2, 3 the report by boetto et al provides compelling insights into the prevalence of smo and akt mutations in olfactory groove meningiomas ogm.
In mri, it is usually isointense with the cerebral cortex in all the sequences, and, after the administration of the contrast, it presents a typical intense enhancement 5. Subcranial, olfactory groove meningioma, anterior skull base. Olfactory groove and sphenoid wing meningiomas columbia. Olfactory groove meningiomamicrosurgical excision video. Olfactory groove meningiomas olfactory groove meningiomas ciurea, alexandru. Pdf olfactory function in patients with olfactory groove.
Olfactory groove meningioma surgery by supraorbital keyhole approach a supraorbital keyhole approach can be used to excise even the large olfactory groove meningiomas located in the midline. Altschul takes to twitter for world stroke day chat. An olfactory groove meningioma is a rare benign tumor with a rather insidious course. Apparently, the concern is a potential increase in the rate of complications by the defect created at the cranial base. Moreover, their findings point to the functional consequences of these.
Meningioma tumours are more common in older people and in women, although they may occur in men and in young people too. Guest of honour dr laligam sekhar organiser mr g narenthiran. Figure 2 from operative techniques olfactory groove. Glomeruli aggregate signals from these receptors and transmit them to the olfactory. Olfactory groove meningioma meningioma of olfactory groove. Olfactory groove meningiomas are rare, benign intracranial tumours. Oct 14, 2015 site related relapses with planum sphenoidale or olfactory groove meningioma, tumor recurrence reported in 7. Because of the anatomical location and large size of ogm, loss of olfaction after surgical resection has been considered inevitable and the sparing of olfactory. The principal symptoms associated with olfactory groove meningiomas are anosmia and headache. Olfactory groove meningioma is a rare clinical entity. The patient also complained of progressive visual loss for an unspecified. Olfactory groove meningiomas are benign tumors that grow along the midline floor of the anterior cranial fossa. All patients underwent resection of an olfactory groove meningioma and later presented with recurrent tumors. Olfaction occurs when odorants bind to specific sites on olfactory receptors located in the nasal cavity.
In histological series they represent 8%18% of all intracranial meningiomas in histological series. Despite advances in imaging and therapeutic measures, the average size of these tumors at the time of surgical resection has not changed over the past few decades. Our goal was to characterize clinical features, treatment strategies. One hundred and twenty nine patients with an olfactory groove meningioma operated between the years 1987 and 2016 were analyzed on the basis of clinical and radiological factors that appeared to affect the conduct of surgery and its outcome. There are some similarities between posteriorly extending ogms and tuberculum sellae. Olfactory groove meningiomas ogms arise in the midline over the cribriform plate and frontosphenoidal suture 18, 31. Olfactory groove meningiomas, which account for 10% of all intracranial meningiomas, arise from the cribriform plate or the frontosphenoid suture. In this case report, a patient with an olfactory groove meningioma presenting with signs and symptoms of transtentorial herniation in the absence of tumorassociated hemorrhage is discussed. They are a nonglial neoplasm that originates from the meningocytes or arachnoid cap cells of the meninges and are located anywhere that meninges are found, and in some places where only rest cells are presumed to be located. Recurrence of olfactory groove meningiomas neurosurgery. Olfactory groove meningioma supraorbital keyhole approach. The slow progression of symptoms in many cases may be accompanied by apathy in these patients, which decreases the likelihood they. The latest cancer research uk statistics show that between a quarter and a third 2533% of all primary brain tumours in adults is a meningioma.
Mar 12, 2020 technical discussion related to olfactory groove meningioma resection. Dorsal clival meningioma indenting the cervicomedullary junction. Alfred ogden shares his expertise in resident anatomy lab dr. Oct 09, 2016 olfactory groove meningioma surgery by supraorbital keyhole approach a supraorbital keyhole approach can be used to excise even the large olfactory groove meningiomas located in the midline. Meyers is snis 2010 annual meeting chairman announcing dr. Meningiomas are benign extraaxial lesions comprising nearly of primary central nervous system tumors 1 and arise from arachnoidal cap cells of the. Olfactory groove meningioma surgery has been associated with complications that include cerebrospinal fluid leak, fatal meningitis, worsening vision, motor deficit, and incomplete removal of tumor 7,17,31,46. Includes information on diagnosis, evaluation, and preoperative considerations. Patients with a history of cranial radiation therapy have a 4 times greater rate of meningioma formation compared with the general population. Meningiomas are extraaxial tumors and represent the most common tumor of the meninges. The most important features of the meningiomas are the typical microscopic ap. Most common symptoms are anosmia, headaches, and visual disturbances, but a range of manifestations, both neurologic and psychiatric, has been described in a significant number of patients.
Main factory that differentiate an olfactory groove meningioma from a tuberculum sale meningioma. Olfactory groove and planum sphenoidale meningioma. Endoscopic endonasal or an eyebrow supraorbital approach are considered. Jul 20, 2011 olfactory groove meningiomas demonstrate a propensity to spread into the paranasal sinuses, particularly in recurrent cases.
Olfactory groove meningiomas journal of neurosurgery. Given a tendency for infiltrative recurrence along the skull base, this disease represents an important area of collaboration between neurosurgery and otolaryngology. We report a case of a 49yearold woman with an olfactory groove schwannoma attached to the cribriform plate without olfactory dysfunction. About years after the first documentedand successfulremoval of an olfactory groove meningioma by roman surgeon francesco durante in 1885 3, his natural successors, neurosurgeons at the catholic university of rome, report on a series of 99 such cases who have been operated on through a periodoftime of 26 years. Patient population frontobasal meningiomas comprised 12. Meningiomas of the skull base pdf free download ebook description meningiomas, the second most frequent of intracranial tumors, are characterized by a protean range of possible locations and appearances, due to their origin from the. Olfactory groove meningiomas from neurosurgical and ear. See smo mutation status defines a distinct and frequent molecular subgroup in olfactory groove meningiomas in volume 19 on page 345.
The slow progression of symptoms in many cases may be accompanied by apathy in these patients, which decreases the likelihood they will seek medical care. Feb 15, 2009 cranial radiation is a definite risk factor for developing meningiomas. Clival and olfactory groove meningiomas radiology case. Andersons spasticity program has grown by leaps and bounds aneurysm aneurysm clipping aneurism anuerysm angevine brings spinal deformity expertise to aans 20 ankylosing spondylitis ann riley finck wins columbias clinical nursing excellence award announcement. Olfactory groove meningioma with paranasal sinuses and nasal cavity extension case report abstract background.
The first line treatment of meningiomas is surgery, but the extent and types of approaches advised for olfactory groove meningiomas are diverse, from aggressive skull base approaches to standard or minimally invasive craniotomies and endoscopic approaches. There is a second larger extraaxial lesion arising in the floor of the anterior cranial fossa in the region of the olfactory groove measuring 30 x 38 x 39 mm. Surgical resection is the treatment of choice for most olfactory groove meningiomas. Olfactory groove meningiomas are commonly diagnosed when their size is significant and causes local mass effect.
The principal symptoms associated with olfactory groove meningiomas are anosmia and headache which lead the patient to the ent specialist. The olfactory groove schwannoma is a quite rare tumor. Hence, this study was performed to evaluate the surgical outcomes of olfactory groove meningioma with bicoronal sub frontal approach but without orbital osteotomies. Clinical presentation a 78yearold woman presented with increasing difficulties with ambulation and memory deficits. Meningiomas of the skull base pdf free download ebook description meningiomas, the second most frequent of intracranial tumors, are characterized by a protean range of possible locations and appearances, due to their origin from the extensive and intricately formed meninges. We report a case of a 49yearold woman with an olfactory groove schwannoma attached to. Despite significant advances in neuroimaging techniques over the past 2 decades, most olfactory groove meningiomas are still very large 4 cm at the time of diagnosis. Olfactory groove and planum sphenoidale meningiomas occur along the anterior cranial base overlying the area of the cribriform plate of the ethmoid bone, frontosphenoid suture, and planum sphenoidale. There are only few publications describing such a presentation in the absence of hemorrhage 1. Smo mutant olfactory groove meningiomasthe next in line for. Presentation and patterns of late recurrence of olfactory. Smo mutant olfactory groove meningiomasthe next in line. Olfaction is a chemoreception that, through the sensory olfactory system, forms the perception of smell. This is the name given to the protective lining of the brain and spinal cord.
Symptoms of olfactory groove and sphenoid wing meningiomas because of the location of acoustic neuromas, the initial symptoms of these tumors involve hearing and balance. Intra operative findings consistent with extra axial mass in relation to olfactory groove. Olfactory groove meningiomas demonstrate a propensity to spread into the paranasal sinuses, particularly in recurrent cases. Jul 16, 2016 case 6 olfactory groove meningioma stephen j. Olfactory groove meningiomas are a relatively uncommon type of intracranial meningioma. These are called the meninges and also help to protect the brain. Olfaction has many purposes, such as the detection of hazards, pheromones, and food. Olfactory groove meningioma, may be atypical as bright signal on diffusion. Modern microsurgical resection of olfactory groove. Olfactory groove meningioma meningioma of olfactory. Olfactory groove and planum sphenoidale meningiomas are rare, constituting only 2% of all primary intracranial tumours.
The olfactory groove meningioma behaves in the images as any other meningioma. Delayed diagnosis is the rule rather than the exception. Oct 01, 2005 olfactory groove meningiomas ogms arise in the midline over the cribriform plate and frontosphenoidal suture 18, 31. Olfactory groove meningiomas make up 4 to % of meningiomas. These are benign neoplasms, originate any part of skull inside, these originate from anterior skull base, olfactory groove, present with head ache, seizures, visual complaints, abnormal behaviour, loss of smell. Olfactory groove meningiomas from neurosurgical and ear, nose. Technical discussion related to olfactory groove meningioma resection. Tinnitus ringing in the ears, hearing loss, disequilibrium, and vertigo are common and caused by compression of the eighth cranial nerve.
A large olfactory groove meningioma displacing the anterior cerebral complex seen by magnetic resonance imaging left and magnetic resonance angiography right. Olfactory grooveplanum sphenoidale meningiomas springerlink. Introduction olfactory groove meningiomas arise in the anterior cranial fossa at the cribriform plate of the ethmoid bone and the area of the suture adjoining the planum sphenoidale. The surgical strategy and outcome for 129 patients operated for an olfactory groove meningioma is retrospectively analyzed.
Site related relapses with planum sphenoidale or olfactory groove meningioma, tumor recurrence reported in 7. Patient positioning and microdissection techniques are discussed. Dec 16, 2016 a large olfactory groove meningioma displacing the anterior cerebral complex seen by magnetic resonance imaging left and magnetic resonance angiography right. Four patients, one female and three males, with surgically resected olfactory groove meningiomas presented with tumor recurrence. Preservation of olfaction in surgery of olfactory groove. Altschul leads svin discussion on new stroke treatments dr. One hundred and twenty nine patients with an olfactory groove meningioma operated between the years 1987 and 2016 were analyzed on the basis of clinical and radiological factors that appeared to affect the conduct of. Inside the skull, and covering the brain, are 3 thin sheets of body tissue.
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