Sacroiliitis
Sacroiliitis is inflammation affecting the sacroiliac joints where the spine meets the pelvis.
When to get help quickly: It is not usually an emergency, but faster assessment matters if pain is severe, there is fever, weight loss, night pain, or concern about infection or another serious cause.
Common symptoms
Symptoms may include pain in the lower back, buttock, or back of the hip, stiffness after rest, and pain that can worsen with standing, walking, or climbing stairs.
When imaging helps
Imaging helps when inflammatory back pain is suspected, when doctors need to look for early sacroiliac joint inflammation, or when another cause of pelvic or lower back pain needs to be excluded.
What radiology does
X-rays, CT, and especially MRI help detect early inflammatory change, structural damage, or other causes of pelvic pain.
What usually happens next
Management may include rheumatology review, anti-inflammatory treatment, physiotherapy, and control of the underlying condition.
Seen this on your report?
Your doctor or the radiologist who wrote it can tell you what it means for you.