Synonyms: tumour of eleventh cranial nerve spinal accessory nerve neoplasms eleventh cranial nerve tumor neoplasm of spinal accessory nerve eleventh cranial nerve tumors accessory nerve neoplasm neoplasm of the eleventh cranial nerve eleventh cranial nerve neoplasms accessory XI nerve spinal component tumour neoplasm of accessory XI nerve spinal component tumor of spinal accessory nerve spinal accessory nerve tumours XIth cranial nerve tumours spinal accessory nerve tumors tumour of the eleventh cranial nerve eleventh cranial nerve tumours neoplasm of eleventh cranial nerve XIth cranial nerve tumors eleventh cranial nerve neoplasm accessory XI nerve spinal component tumor tumour of accessory XI nerve spinal component tumour of spinal accessory nerve accessory XI nerve spinal component neoplasm (disease) tumor of the spinal accessory nerve tumour of the spinal accessory nerve neoplasm of accessory nerve eleventh cranial nerve tumour spinal accessory nerve tumour tumor of accessory XI nerve spinal component tumor of eleventh cranial nerve neoplasm of the spinal accessory nerve XIth cranial nerve neoplasms spinal accessory nerve tumor spinal accessory nerve neoplasm accessory XI nerve spinal component neoplasm tumor of the eleventh cranial nerve