LAUSR

On review of literature, we found that imaging characteristics of hypoglossal schwannomas have been largely limited to case reports.[6–8] A case series by Nonaka et al.[9] described hypoglossal schwannomas as hypointense on T1 and hyperintense on T2 with heterogenous post‐contrast enhancement. Associated non‐enhancing intralesional cystic foci have been previously reported in proven cases of hypoglossal schwannoma[6–8] with cystic foci most often developing within large tumors showing necrosis or spontaneous intratumoral hemorrhage.[6,7] Most of the hypoglossal neurinomas have a dumbbell shape and involve both intracranial and extracranial segment of the hypoglossal nerve.[10] In our case, further imaging revealed a large dumbbell‐shaped solid cystic tumor along the course of the left hypoglossal nerve with associated widening of the left hypoglossal canal and underlying bony destruction. Imaging characteristics were found to be similar to these past case studies.