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The aim of the present study was to report an unusual case of multiple lower cranial nerve palsies in a patient with Wegener's granulomatosis (WG) during radiotherapy for glottic cancer. WG is an autoimmune disease characterized by necrotizing granulomas mainly in the upper and lower respiratory tract or kidneys; however, the involvement of cranial nerves is not uncommon. Prior to the use of cyclophosphamide (CYC) the 1-year mortality rate was ~82%; the introduction of rituximab (RTX) has revolutionized the course of the WG, with remission rates comparable to those of CYC and superior effectiveness in relapsing patients. Hypogammaglobulinemia and B-cell depletion are the best known monitored side effects affecting survival due to secondary infections. Immunodepression and relapse with lower cranial nerve palsy have a negative impact on prognosis. We herein present the case of a heavily pre-treated GPA patient with secondary immunosuppression, who underwent radiotherapy for glottic cancer and developed multiple low cranial nerve palsies during treatment, which was interrupted at 60 Gy. The possible related causes and the association between previous immunosuppressive treatments and radiotherapy were also analyzed to elucidate the cause of this complication.

Lower cranial nerve palsy during radiotherapy for glottic cancer in a patient with Wegener's granulomatosis: An interesting case report