mastoidotomy การใช้

Because operations would destroy the local anatomic structure and in most cases it is difficult to excise widly aggressive tumors perfectly , the author suggests that the auditory canals should be excised or extended mastoidotympanectomy with radiotherapy after operation be prefomed for the tumors limited to external canal or middle ear . radiotherepy before operation can be conducted before extended mastoidotympanectomy or subtotal temporal bone resection for the cases with tumors beyond the middle ear . for the cases with tumors largely beyond the middle ear mastoidotomy can be preformed before thorough radiotherapy