Author(s)

Edwin A. Takahashi^1*, Nathan C. Hull¹, Christopher J. Stevens¹, Joseph M. Hoxworth², Steven M. Weindling³, Christopher P. Wood¹

¹Department of Radiology, Mayo Clinic, Rochester, USA.
²Department of Radiology, Mayo Clinic, Scottsdale, USA.
³Department of Radiology, Mayo Clinic, Jacksonville, USA.

Sinonasal schwannomas are rare, benign and slow-growing peripheral nerve sheath tumors without age, race, or gender predilection. We present the unusual case of a 59-year-old female who pre-sented with right-sided retro-orbital pressure and rhinorrhea. Radiographic imaging revealed a mass centered in the right superior nasal cavity with extension through the cribriform plate into the right more than the left subfrontal region. Biopsy confirmed the diagnosis of a sinonasal schwannoma, which was resected via nasal endoscopic surgery and ethmoidectomy. These tumors, albeit rare, should be considered in the differential diagnosis for patients presenting with a para-nasal sinus mass to ensure inclusion of this benign lesion and avoid unnecessary aggressive in-tervention.

Neurilemmoma, Paranasal Sinus, Sinonasal Tract, Schwannoma

Takahashi, E. , Hull, N. , Stevens, C. , Hoxworth, J. , Weindling, S. and Wood, C. (2015) Sinonasal Schwannoma: A Case Report and Updated Review of the Literature. Open Journal of Medical Imaging, 5, 66-70. doi: 10.4236/ojmi.2015.52010.