Can the blood work be normal by having lymphoma or metastatic disease? my blood was ok beside the d dimer which was 1.78. no bl.clots found in leg/arm

Can be normal: Lymphoma is a condition associated with malignant changes in lymphocytes. In order to have elevated serum markers which of themselves are only about 60% accurate in diagnosis, the tumor must contain a tumor antigen on the surface which when shed into the blood is the so called marker. Lymphomas dont have any such marker. Other tumors shed a carbohydrate marker which can rise with inflammation .