<prompt> Polycythemia is associated with all the following cancers exceptStomach cancerLiver cancerProstrate cancerRenal cell cancer  <response>: Paraneoplastic syndromes -Syndromes which occur due to hormonal proteins produced by a Non-endocrine tumor. So if you find an endocrine tumor, you may safely exclude it from the option.Malignancies associated with polycythemia are the Gastric carcinoma, Renal carcinoma, Cerebellar hemangioma and Hepatocellular carcinoma.Ref: Robbins 8e p 321 