percentage of study population displaying malignant colorectal tumors at a point in time percentage of study population displaying poorly differentiated malignant colorectal tumors at a point in time 2014-01-24T16:50:29Z CMO:0002074 MESH:D015179 RDO:9000031 The number of individuals in a study population which display poorly differentiated malignant colorectal tumors at a certain point in time compared to the total number of individuals in the study population, expressed as a percentage. Poorly 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, and do not display specific physical forms, physiologic functions, and chemical properties characteristic of the tissue. clinical_measurement_ontology jsmith poorly differentiated colorectal adenocarcinoma prevalence poorly differentiated malignant colorectal cancer prevalence poorly differentiated malignant colorectal neoplasm prevalence poorly differentiated malignant colorectal tumor prevalence