Renner W R, Weinstein A S
Cincinnati Medical Center, Ohio.
Radiol Clin North Am. 1988 Nov;26(6):1185-93.
The radiographic diagnosis of rheumatoid arthritis can be suggested long before bone and joint destruction. Soft tissue swelling at the ulnar styloid is classical, but soft tissue swelling also occurs at the PIP and MCP joints. Joint space widening, loss of the lateral fat planes of the wrist, and radial carpal narrowing can all be seen prior to bony change. The earliest bony change is loss of the cortical white line on the radial aspect of the fourth and fifth metacarpal heads.
类风湿关节炎的影像学诊断早在骨骼和关节破坏之前就可作出提示。尺骨茎突处的软组织肿胀很典型，但近端指间关节和掌指关节也会出现软组织肿胀。在骨质改变之前，均可观察到关节间隙增宽、腕部外侧脂肪平面消失以及桡腕关节狭窄。最早的骨质改变是第四和第五掌骨头桡侧皮质白线消失。
