Tumor volume did not correlate with baseline hearing status measured by pure tone thresholds (p = 0.211, Supplementary Fig. 3B) or long-term FN function (38.4 cm3 in HB > III vs. 37.4 cm3 in HB ≤ III, p = 0.350, Supplementary Fig. 3D). Here, FN1 is linked to neoplasm.