BMC Cancer 2008, 8:270 http://www.biomedcentral.com/1471-2407/8/270 FCGieglnluuerlaoern2ctolmogpyon(GenOt,) McloaslesicfuiclatriofunnoctfidoinffearnedntBiaiolllyoegixcparlepsrsoecdegssenceasteingotrhiescarcinoma and papillary adenocarcinoma tumors into Gene ontology (GO) classification of differentially expressed genes in the carcinoma and papillary adenocarci- noma tumors into Cellular component, Molecular function and Biological process categories. Genes that were differently expressed in the two types of tumors (over twofold and at P ≤ 0.05) were classified to elucidate the cellular sub- compartments, functions and processes that account for the differences between phenotypes. Numbers above bars represent the number of genes involved. Page 6 of 19 (page number not for citation purposes)