Fig. 4
From: Large cell neuroendocrine carcinoma of the kidney with cardiac metastasis: a case report
Changes in tumor marker levels. The levels of neuron-specific enolase and pro-gastrin-releasing peptide before chemotherapy were 4.0 ng/mL and 58.5 pg/mL, respectively. Neuron-specific enolase decreased in response to treatment, and increased after treatment discontinuation. Changes in pro-gastrin-releasing peptide did not correlate with treatment. Neuron-specific enolase and pro-gastrin-releasing peptide levels are expressed as ng/mL and pg/mL, respectively