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[Olfactory groove schwannoma: case report]
Heider Lopes de Souza1, Ana Maria de Oliveira Ramos, Carlos Cesar Formiga Ramos
1Serviço de Neurocirurgia, Hospital Universitário Onofre Lopes, Universidade Federal do Rio Grande do Norte, Brasil. heider@ufrnet.br
Arquivos De Neuro-Psiquiatria
|April 26, 2003
Summary
This case study details an unusual olfactory groove schwannoma, a rare intracranial tumor. Complete resection required multiple surgical approaches due to its complex presentation and location.
Area of Science:
- Neurosurgery
- Neuropathology
- Oncology
Background:
- Intracranial schwannomas are typically associated with cranial nerves.
- Schwannomas in the subfrontal region, specifically the olfactory groove, are exceptionally rare.
Observation:
- A 27-year-old male presented with anosmia and headache, exhibiting bilateral papilledema.
- Initial imaging revealed a bifrontal multicystic mass mimicking an olfactory groove meningioma.
- The tumor extended into the nasal cavity, complicating surgical resection.
Findings:
- Histopathological diagnosis confirmed schwannoma via S-100 protein immunohistochemistry.
- Multiple surgical interventions were necessary for complete tumor removal.
- Radiological features were initially misleading, resembling meningioma.
Implications:
- Highlights the diagnostic challenges posed by rare intracranial tumors.
- Emphasizes the importance of considering schwannoma in olfactory groove masses.
- Demonstrates the necessity of tailored surgical strategies for complex tumor resections.