Unexplained Distal Obstructive Biliary Dilatation

Background: The aim was to compare the differences of clinical-radiologic characteristics between malignant and benign causes of patients with unexplained distal obstructive biliary dilatation and to develop a logistic regression model (nomogram) based on those features to predict malignant causes preoperatively. Patients and Methods: Clinical-radiologic characteristics of 133 patients with unexplained distal obstructive biliary dilatation were...