Fig. 4From: The plasma glutamate concentration as a complementary tool to differentiate benign PET-positive lung lesions from lung cancerROC curve for glutamate. A low glutamate concentration is considered as diagnostic for cancer. The cut-off point with the highest sensitivity and lowest 100-specificity is 0, 31. p value < 0,001, area under the curve (AUC) 0,875Back to article page