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SPECT/CT of osteitis condensans ilii: one-stop shop imaging.

A 16-year-old, nonpregnant, healthy, and sportive teenager suffers from intermittent low back pain. Pelvic x-ray complemented by bone-SPECT/CT demonstrated an uncommon benign condition called osteitis condensans ilii. In the early phase, it is of paramount importance to distinguish osteitis condensans ilii from sacroiliitis or ankylosing spondylitis. This case report highlights the incremental value of performing one-stop shop hybrid SPECT/low-dose CT bone imaging in diagnosing and managing this rare benign skeletal condition.