Object: Our object is to illustrate the various aspects of clinical presentation and surgical complications with linkage to the tumor size regarding cerebellopontine angle (CPA) tumors. Materials and method:This is a prospective study of 30 patients at the Neurosurgical department / Medical city, with mean age of 36 years with CPA tumors (predominantly acoustic neuroma) that underwent surgical removal using a suboccipital retrosigmoid approach over a 1-year period (2015 / 2016).Results: There was a female preponderance. The most common presentation was vertigo followed by tinnitus. There were two cases (6%) of cerebrospinal fluid leak. Facial nerve function was measured by the House Brackmann (HB) system and function further classified into three categories: excellent (HB I-II), intermediate (HB III-IV), and poor (HB V-VI) outcome following surgery, showing that all cases below 20 mm tumor size have an excellent outcome and (67%) of cases with > 20 mm tumor size shows poor outcome. One death in this study (mortality rate, 3%) was due to respiratory cessation. Conclusion:Significant correlation between tumor size and facial nerve outcome, with larger C.P.A. tumors yield worse outcomes. Tumor size also influences the development of CSF leak and operative morbidity and mortality.