What the bone window images have shown?
Signs of sacroiliitis and lower thoracic spine spondylitis.
Small bowel to the right colon anastomosis is demonstrated. There is an abnormal segment of distal small bowel measuring approximately 8 cm just proximal to the anastomosis, where there is circumferential thickening of the small bowel wall and stranding in the surrounding fat.
Multiple loops of small bowel are distended with transition points in the mid small bowel and in the region of the anastomosis. Contrast and gas have passed all the way to the rectum.
Small volume free fluid in the dependent portion of the pelvis.
Numerous prominent lymph nodes in the small bowel mesentery measuring up to 8 mm in short axis.
Multiple cysts in the spleen.
Widening of both sacroiliac joints with sclerosis on the erosions on the iliac sides of both joints in keeping with sacroiliitis.Squaring of vertebral bodies and anterior syndesmophyte formation in the lower thoracic spine.