The receiver operator curve with 95% CI for (A) SDS biopsy and (B) SDS clinical. A, Using 6 points led to a sensitivity of 99.3%, specificity of 100%, and an AUC of 1.000. B, Using 3 points led to a sensitivity of 89.8%, specificity of 88.0%, and an AUC of 0.954. AUC = area under the curve; SDS = Sarcoidosis Diagnostic Score.