Nasal schwannoma: a case report and clinicopathologic analysis

According to the literature, half of the schwannoma cases occur in the head and neck areas and only less than 4% occur in the sinonasal tract. In this case, a 39-year-old male patient, with a-year-long progressive left side n asal obstruction and purulent rhinorrhea, is presented. The CT reveals a ma ss filling the left nasal cavity and nasopharyngeal space, with bony erosio n of the inferior turbinate and medial maxillary bone. During surgical inte rvention, the mass is found to originate from the medial side of the left m iddle turbinate with maxillary sinusitis and inferior turbinate atrophy. Th e pathological examination reveals a noncapsulated tumor with palisading ce llular arrangement and high cellular density. The pathological findings and nervous origin of the tumor are discussed after an extensive review of the literature.