Case of the Week
Section Editors: Matylda Machnowska1 and Anvita Pauranik2
1University of Toronto, Toronto, Ontario, Canada
2BC Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
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January 15, 2015
Giant Pterygopalatine Schwannoma
- Schwannomas are benign tumors of ectodermal origin that arise from the Schwann cells of the nerve sheath.
- Pterygopalatine fossa schwannomas arise from the maxillary division of the trigeminal nerve, pterygopalatine ganglion, the inferior orbital nerve, and other small communicating nerves.
- Key Diagnostic Features Large, expansile enhancing lesion in the region of the pterygopalatine fossa. No flow voids.
- DDx
- Nasopharyngeal angiofibroma
- Rhabdomyosarcoma
- Metastasis
- Rx: Surgical resection