问题解答问：家族性抗维生素Ｆ佝偻病有哪些Ｘ线特征？答：本病除具有明显骨质稀疏外，尚有以下Ｘ线特征：①干骺端杯口状和毛刷样改变，以股骨下干骺端较著，次为耻骨联合；②股骨下端呈球状膨大或向内下倾斜；③腔骨下端呈鸟嘴状向内下突出，关节面内陷，与距骨关节面突... Q: What are the X-ray features of familial anti-vitamin F rickets? A: The disease in addition to having obvious bone sparse, there are the following X-ray features: ① metaphyseal cup mouth-like and brush-like changes to the femur metaphysis significantly, the second is the pubic symphysis; ② the lower end of the femur was Spherical bulge or tilt down; ③ the lower end of the bony beak-like protruding to the inside, the articular surface invagination, and talus articular surface suddenly ...