Figure 1From: Prognostic impact of gastrointestinal bleeding and expression of PTEN and Ki-67 on primary gastrointestinal stromal tumorsIHC analysis of GISTs representing different expression of PTEN and Ki-67 (3,3′-Diaminobenzidine, magnification × 20). (A) PTEN, cytoplasmic staining (H-score, 4) and (B) both cytoplasmic and nuclei staining (H-score, 8). (C) Ki-67 nuclei staining in 5% and (D) 20% of tumor cells.Back to article page