Neoadjuvant therapy in a patient with clival plasmacytoma associated with multiple myeloma: a case report

Abstract Background Plasmacytoma is a localized mass of metastatic plasma cells. These lesions rarely involve the petroclival region and carry a high risk of progression to MM and poor prognosis. Case Description We report a 65-year-old woman who presented with a large clival plasmacytoma causing right trigeminal and abducens nerve palsies and was diagnosed with MM after transsphenoidal biopsy. She underwent neoadjuvant chemoradiotherapy followed by radical resection of the residual tumor. Conclusion We presented our treatment strategy including neoadjuvant chemoradiotherapy followed by radical resection of the lesion. The patient has experienced complete remission, and succeeding MRI revealed no evidence of local recurrence.