Fig. 2From: Frequency of inflammatory back pain and sacroiliitis in Egyptian patients with rheumatoid arthritisFemale patient 40 years with rheumatoid arthritis. Enthisiitis (a) ultrasound of the ankle showed thickened Achilles tendon. b Musculo-skeletal ultrasound of the knee showed quadriceps tendon. c Plain X-ray of the sacroiliac joint AP view showed ankylosis of the sacroiliac joint with sclerotic margin. d T2WI of the sacroiliac joint showed bone edema more evident at the right sideBack to article page