metastatic prostate carcinoma should be ruled out by using immunoperoxidase for psa and psap in all men over 45 presenting with carcinoma of unknown primary origin in left-sided supradiaphragmatic lymph nodes , even in the absence of bony disease , elevated serum acid phosphatase ( sap ) , abnormal rectal examination , and a histologic picture suggesting prostate carcinoma .
C0138741
psa
C0600139
prostate carcinoma