• tumors
  • A higher index of proliferating cell nuclear antigen (PCNA) in the primary tumor and liver metastasis (10%) was also found compared to other ACTH-secreting adenomas (invasive, 3.4 +/- 1.9% vs 1.7 +/- 1.5% in noninvasive) and other pituitary tumors (invasive, 2.9 +/- 1.5% vs 1.5 +/- 1.3% in noninvasive). (unifesp.br)
  • the PCNA index was significantly higher in invasive tumors than in noninvasive adenomas (p = 0.004). (unifesp.br)