NCIt synonyms : Benign Rectal Tumor; Benign Tumor of the Rectum; Benign Tumor of Rectum; Benign Neoplasm of the Rectum; Benign Rectal Tumors; Benign Neoplasm of Rectum; Rectal Neoplasms, Benign; Rectal Tumors, Benign; Benign Rectal Neoplasms;
NCIt definition : A neoplasm that arises from the rectum and is characterized by the absence of atypical
or malignant cytological and architectural features, and absence of invasive features
or metastatic potential.;