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Olfactory groove meningiomas
A Tsikoudas1, D P Martin-Hirsch
1North Staffordshire Royal Infirmary, Department of Neurosurgery and Leeds General Infirmary, Leeds, UK.
Abstract:
Olfactory groove meningioma is a rare clinical entity. The principal symptoms associated with olfactory groove meningiomas are anosmia and headache which lead the patient to the ENT specialist. Frontal sinusitis, migraine and neuralgia are most frequent incorrect diagnoses. This retrospective study of 13 consecutive patients who underwent excision of Olfactory Groove meningiomas in the North Staffordshire Royal Infirmary, Department of Neurosurgery over a 20-year period was undertaken to study the presenting features, duration of symptoms, results of surgery, and long-term follow-up. Symptoms were present for less than 6 months to 3 years. Although excision was thought to be complete reoccurrences occurred in four patients. The morbidity of surgery was significant.
Insights
Olfactory groove meningiomas, rare brain tumors, often present with anosmia and headache, leading to misdiagnosis. Surgical excision showed significant morbidity and a notable recurrence rate in this study.
Area of Science:
- Neurosurgery
- Oncology
- Neurology
Background:
- Olfactory groove meningiomas are rare tumors causing anosmia and headache.
- Common misdiagnoses include frontal sinusitis, migraine, and neuralgia.
- Early diagnosis is often delayed due to non-specific symptoms.
Purpose of the Study:
- To review the presenting features and outcomes of olfactory groove meningioma surgery.
- To analyze symptom duration, surgical results, and long-term follow-up.
- To assess the morbidity and recurrence rates associated with tumor excision.
Main Methods:
- Retrospective analysis of 13 patients with olfactory groove meningiomas.
- Data collected over a 20-year period from North Staffordshire Royal Infirmary.
- Evaluation of presenting symptoms, surgical outcomes, and follow-up data.
Main Results:
- Symptoms ranged from 6 months to 3 years in duration.
- Complete excision was achieved in most cases, but four recurrences were noted.
- Significant surgical morbidity was observed in the patient cohort.
Conclusions:
- Olfactory groove meningiomas require careful diagnosis due to frequent misinterpretations.
- Surgical outcomes are associated with considerable morbidity and a risk of recurrence.
- Long-term follow-up is essential for patients undergoing meningioma resection.