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Wegener's granulomatosis with unusual cavernous sinus and sella turcica extension
M Hermann1, B Bobek-Billewicz, B Bullo
1Department of Radiology, Medical University of Gdansk, Debinki 7, 80-211 Gdansk, Poland.
Abstract:
Intracerebral extension of Wegener's granulomatosis (WG) is rare. We present a patient with oculomotor and trochlear nerve palsy with histologically proved WG. An MR examination revealed granulomatous tissue in nasal cavity, paranasal sinuses with meningeal infiltration, and uncommon penetration into cavernous sinus and sella turcica. The MR images before and during pharmacological therapy are presented.
Insights
Wegener's granulomatosis (WG) rarely extends into the brain. This case highlights uncommon intracranial spread, including to the cavernous sinus and sella turcica, visualized by MRI.
Area of Science:
- Neurology
- Ophthalmology
- Radiology
Background:
- Wegener's granulomatosis (WG), a form of granulomatous vasculitis, typically affects the upper respiratory tract and kidneys.
- Intracranial involvement, particularly direct extension from sinonasal disease, is an infrequent manifestation of WG.
Observation:
- A patient presented with oculomotor and trochlear nerve palsies, indicative of cranial nerve dysfunction.
- Histopathological examination confirmed WG as the underlying diagnosis.
- Magnetic Resonance (MR) imaging demonstrated granulomatous tissue in the nasal cavity and paranasal sinuses with meningeal infiltration.
Findings:
- MR imaging revealed unusual WG extension into the cavernous sinus and sella turcica.
- The findings illustrate the potential for WG to cause significant intracranial pathology beyond typical patterns.
Implications:
- This case underscores the importance of considering WG in patients with unexplained cranial nerve palsies and sinonasal disease.
- Advanced imaging techniques like MRI are crucial for diagnosing and monitoring the extent of WG intracranial spread.
- Understanding these rare presentations aids in timely diagnosis and appropriate management of Wegener's granulomatosis.