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  • Title: Surgical implications of frontoethmoidal pneumosinus dilatans-associated proptosis caused by meningioma.
    Author: Raheja A, Abou Al-Shaar H, Patel BC, Couldwell WT.
    Journal: Acta Neurochir (Wien); 2016 Aug; 158(8):1597-600. PubMed ID: 27246632.
    Abstract:
    Pneumosinus dilatans (PSD) involves paranasal sinus enlargement without radiologic evidence of localized bone destruction, hyperostosis, or mucous membrane thickening. We discuss the surgical implications of PSD-associated proptosis in patients with anterior skull-base meningioma. A 20-year-old man with proptosis, hypoglobus, and lateral globe displacement had WHO grade I anterior skull-base and orbital meningiomas. Aggressive resection using anterior/medial orbitotomy and an anterior interhemispheric skull-base approach achieved Simpson grade I resection. Postoperatively, his symptoms improved, with no recurrence at 2-year follow-up. Although PSD-associated proptosis is relatively uncommon, it carries important clinical implications in surgical management of skull-base and orbital meningiomas.
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