In order to completely remove mass lesions, a surgeon needs a clear view of the large bowel's anatomy. (vetmed.ucdavis.edu)
This is particularly the case in patients without an obvious mass lesion on imaging or endoscopic studies. (sciencedaily.com)
Bargellini P, Orlandi R, Dentini A, Paloni C, Rubini G, Fonti P, Diana A, Peterson ME, Boiti C. Differentiation of adrenal mass lesions in dogs by contrast - enhanced ultrasound. (animalendocrine.com)