Caspase-3 expression in metastatic lymph nodes of esophageal squamous cell carcinoma is prognostic of survival

Figure 1 Representative immunohistochemical staining for caspase-3 in a primary tumor (A) and a paired metastatic lymph node (B) resected from the same patient (original magnification × 200).

Figure 2 Log₁₀ ratio¹ of caspase-3 expression in a metastatic lymph node and primary tumor for each patient. ¹Log₁₀ ratio > 0 and < 0 indicate higher and lower expression, respectively, in metastatic lymph nodes.

Figure 3 Disease-specific survival curves relative to caspase-3 expression in (A) primary tumor and (B) paired metastatic lymph node. PT: Primary tumor; PMLN: Paired metastatic lymph node.