[Tumor-induced osteomalacia caused by an orbital tumor: a case report].

A 52-year-old patient was initially diagnosed as hypophosphatemic osteomalacia in the Department of Endocrinology due to knee, foot and lumbosacral pain. The symptoms were not significantly relieved after phosphorus and vitamin D supplementation. Later, the imaging examination showed an orbital tumor in the right eye. The tumor was surgically removed, and the symptoms of systemic bone pain were relieved.