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Rev. Hosp. Ital. B. Aires (2004) ; 37(2): 63-67, jun. 2017. graf., ilus.
Article in Spanish | LILACS | ID: biblio-1087149

ABSTRACT

Presentamos un paciente de 63 años con cáncer renal y aumento de fosfatasa alcalina sérica de tipo óseo de acuerdo con su reactividad con anticuerpos monoclonales específicos. Se descartaron las causas conocidas de aumento de la isoenzima, incluyendo metástasis óseas. Los niveles enzimáticos cayeron abruptamente con la remoción del tumor, por lo que consideramos a este último como su origen. Diversas isoenzimas de fosfatasa alcalina pueden ser producidas y secretadas por tumores como manifestación paraneoplásica. El conocimiento de esto puede, en ocasiones, orientarnos hacia la presencia de una neoplasia oculta. Además, los cambios en los niveles séricos de esas isoenzimas pueden ser indicadores de respuesta al tratamiento o de recidiva tumoral. (AU)


A 63-year old man was seen in the outpatient clinic because of renal cancer and elevation in bone alkaline phosphatase measured by monoclonal antibodies assay. Known causes of bone isoenzyme augmentation, including bone metastases, were ruled out. The tumoral origin of the isoenzyme was diagnosed because after removal of the tumor the enzymatic levels fell sharply. Several alkaline phosphatase isoenzymes can be produced and secreted by tumors as a paraneoplasic manifestation and their elevation could be a manifestation of an occult neoplasia. Furthermore the monitoring of their blood levels can be useful means of treatment response and a tool to monitoring recurrence if a sharp decrease after removal of the tumor is observed. (AU)


Subject(s)
Humans , Male , Middle Aged , Alkaline Phosphatase/biosynthesis , Kidney Neoplasms/metabolism , Osteitis Deformans/diagnostic imaging , Atenolol/therapeutic use , Biomarkers , Erythropoietin/therapeutic use , Simvastatin/therapeutic use , Alkaline Phosphatase/analysis , Alkaline Phosphatase/radiation effects , Alkaline Phosphatase/physiology , Everolimus/therapeutic use , Sunitinib/therapeutic use , Zoledronic Acid/therapeutic use , Hypercholesterolemia/drug therapy , Hypertension/drug therapy , Ilium/diagnostic imaging , Anemia/drug therapy , Kidney Neoplasms/pathology , Kidney Neoplasms/drug therapy , Kidney Neoplasms/diagnostic imaging , Antibodies, Monoclonal/radiation effects
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