This is a report on our experience in the application of microsurgery technique for treatment of brainstem space-occupying lesions in 21 cases ( including tumors 12 cases spontaneous brainstem hematomas 8 cases and syringobulbia 1 case ) .

报告21例脑干占位性病变显微手术治疗的经验。其中脑干肿瘤12例，自发性脑干血肿8例，脑干 空洞 症1例。

Results On MRI the tumors can be divided into three types : A. Syringeal type the tumor varied in size and accompanied by syringobulbia and syringomyelia ;

结果这类肿瘤在MRI上可分为三型：A空洞型，肿瘤大小不等， 且 继发 延、脊髓空洞；