Imaging features of benign and malignant ampullary and periampullary lesions.
Nikolaidis P, Hammond NA, Day K, Yaghmai V, Wood CG, Mosbach DS, Harmath CB, Taffel MT, Horowitz JM, Berggruen SM, Miller FH. Imaging features of benign and malignant ampullary and periampullary lesions. Radiographics. 2014 May-Jun; 34(3):624-41.