With reference to neoplasia, the term 'tumor progression means
Multi step.theory of carcinogenesis Phy.attributes are .self sufficient in growth signal .local invasion ,metastasis .karyotic pattern .hormonal response .response to Anti malignant drugs Evading apoptosis All these acquired in a step wise fashion This phenomenon is tumour progression
Spread of cancer to distant sites
Rate of growth of tumors
Abi1ity of cancer cells to resemble their normal counterpa
Sequential appearnace of features of increasing malignancy
Cardiovascular system