Primary Tumor

A primary tumor is a tumor growing at the anatomical site where tumor progression began and proceeded to yield a cancerous mass.

Famous quotes containing the word primary:

    “A fact is a proposition of which the verification by an appeal to the primary sources of our knowledge or to experience is direct and simple. A theory, on the other hand, if true, has all the characteristics of a fact except that its verification is possible only by indirect, remote, and difficult means.”
    —Chauncey Wright (1830–1875)