Schwannoma Originating From the Lingual Nerve Radiologically Mimicking a Submandibular Gland Tumor

Abstract

Schwannoma, also known as neurilemmoma, is a slowly growing benign neurogenic tumor,originating from the Schwann cells of the nerve sheath. Schwannoma can arise from variousnerves such as cranial nerves, spinal nerves, autonomic nerves, and is most common in thehead and neck area. However, Schwannoma originating from the lingual nerve is very rareand the clinical findings are non-specific. Therefore, when it occurs in the submandibularspace, it is difficult to differentiate them from other tumors, making it difficult to accuratelydiagnose before surgery. Therefore, by reporting a case of Schwannoma originating from thelingual nerve that was misdiagnosed for a submandibular gland tumor, we intend to understandthe characteristics and radiological findings of Schwannoma originating from the lingualnerve. The tumor was successfully treated without complications by using the da Vincirobotic surgical system, which provides a wide field of view and wrist joint structure.