Tumor-induced osteomalacia (TIO) is typically caused by phosphaturic mesenchymal tumor (PMT) that secretes the phosphaturic hormone, fibroblast growth factor-23 (FGF23), resulting in decreased phosphate reabsorption in kidneys, hypophosphatemia, and finally osteomalacia. Rare cases of malignant tumor manifesting with TIO other than PMT had been reported, although in most of these reports, except one, circulating FGF23 levels were not evaluated and tissue expressing of FGF23 was not confirmed. In this article, we report a case of TIO in a patient with pulmonary small cell carcinoma with liver metastasis. The patient manifested with hypophosphatemia. His circulating level of FGF23 was markedly increased. The expression of FGF23 in tumor cells was confirmed. Furthermore, the regulatory mechanism of FGF23 in this patient was also investigated.
机构:
Brigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Massachusetts Gen Hosp, Dept Med, Boston, MA 02114 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Leaf, David E.
;
Pereira, Renata C.
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机构:
Univ Calif Los Angeles, Div Pediat Nephrol, Los Angeles, CA 90095 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Pereira, Renata C.
;
Bazari, Hasan
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机构:
Massachusetts Gen Hosp, Dept Med, Boston, MA 02114 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Bazari, Hasan
;
Jueppner, Harald
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机构:
Massachusetts Gen Hosp, Endocrine Unit, Boston, MA 02114 USA
Massachusetts Gen Hosp, Pediat Nephrol Unit, Boston, MA 02114 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
机构:
Brigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Massachusetts Gen Hosp, Dept Med, Boston, MA 02114 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Leaf, David E.
;
Pereira, Renata C.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Div Pediat Nephrol, Los Angeles, CA 90095 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Pereira, Renata C.
;
Bazari, Hasan
论文数: 0引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Dept Med, Boston, MA 02114 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA
Bazari, Hasan
;
Jueppner, Harald
论文数: 0引用数: 0
h-index: 0
机构:
Massachusetts Gen Hosp, Endocrine Unit, Boston, MA 02114 USA
Massachusetts Gen Hosp, Pediat Nephrol Unit, Boston, MA 02114 USABrigham & Womens Hosp, Div Renal, Boston, MA 02115 USA