MAP1B and neoplasm: Similarly, in cases with UBUC, we found evidence of associations between increased MAP1B expression and advanced pathological tumor stage (p < 0.001), positive lymph node metastasis (p = 0.012), a high histological tumor grade (p = 0.016), the presence of vascular invasion (p = 0.045), and an increased mitotic rate (p = 0.006) (Table 2 and Figure 2E).