{Reference Type}: Case Reports {Title}: Extracranial Hypoglossal Schwannoma: Case Report and Literature Review. {Author}: Derka S;Ebeling M;Pietzka S;Vairaktari G;Stavrianos S;Schramm A;Sakkas A; {Journal}: In Vivo {Volume}: 38 {Issue}: 3 {Year}: 2024 May-Jun {Factor}: 2.406 {DOI}: 10.21873/invivo.13596 {Abstract}: BACKGROUND: Schwannomas are solitary neurogenic tumors originating from the myelin sheath of peripheral nerves. Extracranial hypoglossal schwannomas comprise <5% of all head and neck schwannomas and can mimic submandibular salivary gland tumors.
METHODS: We report the diagnostic imaging, surgical treatment, and histopathological findings of a rare case of extracranial schwannoma of the hypoglossal nerve in a 73-year-old female, presented with an asymptomatic swelling in the left submandibular region that had been persisted for approximately three years.
CONCLUSIONS: Accurate diagnosis of this rare clinical entity requires comprehensive diagnostics. The optimal therapeutic strategy is nerve-sparing surgical excision, although it can be challenging.