percentage of study population developing malignant colorectal tumors during a period of time percentage of study population developing well differentiated malignant colorectal tumors during a period of time 2014-01-24T16:34:10Z CMO:0002072 JSmith MESH:D015179 RDO:9000031 The number of new cases of well differentiated malignant colorectal tumors appearing in a study population during a certain period compared to the total number of individuals in the study population, expressed as a percentage. Well differentiated malignant colorectal tumors are abnormal growths of tissue in the large intestine resulting from uncontrolled, progressive multiplication of cells and serving no physiological function, which display the properties of anaplasia, invasiveness and metastasis, but which also display specific physical forms, physiologic functions, and chemical properties characteristic of the tissue. VT:0010554 clinical_measurement_ontology well differentiated colorectal adenocarcinoma incidence well differentiated malignant colorectal cancer incidence well differentiated malignant colorectal neoplasm incidence well differentiated malignant colorectal tumor incidence