Reserving changes occurred only in the bone density and bony trabecula but forearm and shank had a turn for the better and some turned more serious too.

• 观察硬化型氟骨症逆转征象,仅有骨盆骨小梁和骨密度改变出现转归,则前臂、小腿未有明显变化,未发现骨周骨化好转,甚至有的进行性加重。