A Rare Case of Paranasal Sinus Schwannoma with Intracranial Extension
Journal Title: Journal of Clinical and Diagnostic Research - Year 2019, Vol 13, Issue 3
Abstract
ABSTRACT Paranasal sinus schwannomas are uncommon and account for less than 4% of head and neck schwannomas. Intracranial extension and aggressive behaviour are very rarely observed in these tumours leading to misdiagnosis of a malignant neoplasm. Here, we report a case of a 35-year-old male with complaint of proptosis. MRI showed a tumour in the region of ethmoid sinus with expansion into anterior cranial fossa. Microscopy revealed a biphasic tumour with compact and loose areas. Tumour was composed of spindle cells with wavy nuclei, showing focal palisading and a strong immunoreactivity for S100. MIB-1 index was around 1%. A diagnosis of Schwannoma was favoured based on histology and immunohistochemistry.
Authors and Affiliations
Mihir Mohan Vaidya, Asha Sharad Shenoy, Naina Atul Goel
Keywords
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- EP ID EP582442
- DOI 10.7860/JCDR/2019/35532.12731
- Views 96
- Downloads 0
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