<p>A method for detecting cancer cells in an extirpated sample, which comprises monitoring changes in the expression dose of at least one cancer-associated gene selected from among genes whose cDNAs are those hybridizable under stringent conditions with DNAs having the base sequences represented by SEQ ID NOS: 1 to 16 in the Sequence Listing or nucleic acids having the base sequences represented by SEQ ID NOS: 1 to 16 in the Sequence Listing; and a kit, etc., for detecting cancer by the above method.</p>
