title: Adenocarcinoma of unknown origin. A rational approach to a diagnostic puzzle.
abstract: Determination of the tissue of origin of disseminated adenocarcinoma is often difficult. Careful clinical evaluation of the patient in light of known characteristics of certain primary tumors, followed by appropriate screening tests, may yield decisive information. If not, a decision for or against more specific tests must be made.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology / Q000601:surgery; D001772:Blood Cell Count; D001774:Blood Chemical Analysis; D001999:Bronchoscopy; D005260:Female; D006801:Humans; D008111:Liver Function Tests; D008297:Male; D008487:Medical History Taking; D009362:Neoplasm Metastasis; D010808:Physical Examination; D011351:Proctoscopy; D013902:Radiography, Thoracic; D011877:Radionuclide Imaging; D014463:Ultrasonography; D014556:Urine / Q000032:analysis