Clinical Analysis of 11 Cases of Rare Tumors in the Lateral Skull Base
Objective To explore the clinical manifestations,imaging features and diagnosis and treatment of the primary tumors at the lateral cranial fossa base,so as to accumulate experience for clinical diagnosis and treatment.Methods The clinical data of 11 patients with lateral skull base tumor were retrospectively analyzed,and the imaging manifestations,surgical approaches and postoperative follow-up results were analyzed.Results The tumor invasion scope of 11 patients mainly included temporal bone scale,infratemporal fossa,temporomandibular joint and middle ear.The middle ear of 11 patients was obviously invaded.The tumor was completely removed through the combined approach of infratemporal fossa and the external auditory canal was closed.There were no serious complications after operation.Postoperative pathology:3 cases of diffuse giant cell tumor of the tendon sheath,1 case of giant cell repair granuloma,1 case of chondrosarcoma,1 case of paraganglioma,2 cases of petrous apex cholesteatoma,and 3 cases of facial neurilemmoma,all of which belong to rare tumors.Eight cases were followed up for more than 1 year,1 case recurred,7 cases had no recurrence,3 case was followed up for less than 1 year.They were in good condition during the follow-up time.Conclusion High resolution temporal bone CT and enhanced MRI have good significance in differentiating the lesion scope and nature of lateral skull base tumor,and careful preoperative examination can effectively improve the diagnostic rate.Personalized surgical plan should be made according to tumor invasion range.
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