Sporadic adult-onset hypophosphatemic osteomalacia--a report of two cases.

Two cases of sporadic adult onset hypophosphatemic osteomalacia are described. Both patients initially presented with intractable low backache and had lumbar laminectomies. In retrospect, they both had typical clinical and biochemical features of hypophosphatemic osteomalacia prior to surgery. Medical treatment resulted in rapid relief of symptoms in both patients.