area of prostate occupied by tumorous lesions to total prostate area ratio calculated ventral prostate tumorous lesion area measurement area of ventral prostate occupied by tumorous lesions to total ventral prostate area ratio 2012-07-03T01:28:03Z A calculated measurement in which the area of the ventral lobe of the prostate gland occupied by tumorous lesions is divided by the total area of the ventral lobe of the prostate gland, and the result presented as a ratio, fraction, quotient or percentage. A tumorous lesion is one which is or has the potential to become a tumor, that is, a neoplasm or new growth of tissue in which cell multiplication is more or less uncontrolled and progressive. Tumorous lesions include tumors, preneoplastic lesions, and hyperplastic lesions composed of histologically normal cells. CMO:0000899 JSmith VT:0010571 area of ventral prostate occupied by tumorous lesions as percentage of total ventral prostate area clinical_measurement_ontology