Olfactory Groove Meningioma
The Department of Neurosurgery at The Mount Sinai Hospital specializes in the diagnosis and treatment of olfactory groove meningiomas—benign growths that form deep in the cranial cavity between the brow and nose in the frontal area of the brain.
“These types of meningiomas can grow very large before they are noticed and become symptomatic,” said Joshua Bederson, MD, Chairman of the Department of Neurosurgery.
Olfactory groove meningiomas are typically non-cancerous and represent about 10 percent of all meningiomas, according to the American Brain Tumor Association (ABTA). In rare instances, olfactory groove meningiomas can fall under Grade II and III of the World Health Organization’s classification of meningiomas, both indications of malignancy.
As a major referral center in the tri-state area for olfactory groove meningiomas, Mount Sinai’s multidisciplinary team of physicians has the experience to provide patients with a range of options for management and care during all stages of treatment.
Olfactory Groove Meningioma Symptoms
Olfactory groove meningiomas are often asymptomatic because of their location. When they become large, they have a tendency of pushing optic nerves downward. This tumor progression can create symptoms ranging from:
- Loss of smell and taste
- Blurred vision
- Memory loss
- Nausea, and possibly vomiting
- Personality changes
Since symptoms are not always present, olfactory groove meningiomas often go undetected until they are found incidentally through a magnetic resonance image (MRI) scan.
Treatment for Olfactory Groove Meningiomas
Our neurosurgeons work with patients to develop personalized treatment plans for their olfactory groove meningiomas. Treatment for this condition often depends on the location, size, and grade of the tumor, as well as the age and fitness of the patient.
If a patient demonstrates other comorbidities, a more conservative approach such as frequent imaging and observation might be recommended.
Surgical resection is another option for patients. Minimally invasive techniques such as transnasal endoscopic surgery (removal through the nose) can be recommended if the meningioma is of manageable size and hasn’t migrated to one side of the cavity. Other surgical options include craniotomy, a more traditional approach to the removal of a brain tumor.
Once removed, only five percent of resected benign meningiomas recur, according to the ABTA.
Recovery Following Surgical Treatment for Olfactory Groove Meningiomas
A patient’s overall health, the growth characteristics of the meningioma, and its size and location often affect recovery times.
Depending on the surgery, a patient might be discharged from the hospital in 1-3 days; for a more involved surgery, discharge might take up to a week or more. Following the surgery, it is recommended that a family member or friend escort a patient home.
Patients are encouraged to get up and start walking as soon as they are physically able, but they should avoid heavy lifting.
A neurosurgeon will give specific instructions before surgery and during a post-operative visit, which is usually 1-2 weeks following a procedure, to optimize the healing process.
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From nausea to persistent headaches, the symptoms of a meningioma often depend on its size and location. Learn More
Our experienced neurosurgeons will evaluate your symptoms and will use imaging techniques to diagnosis your meningioma. Learn More