- Enthesophytes (yellow arrows): Irregular outgrowths or whiskering seen most commonly at the iliac crests, ischial tuberosities, and the trochanters.
- Para-articular osteophytes (red arrows): Broad and well-defined. Seen at the acetabular margins, sacroiliac joints, and pubic symphysis. Sacroiliac osteophytes tend to affect the inferior margins.
- Ligamentous ossification: Iliolumbar (black arrows) and sacrotuberous ligaments.
- Resnick D, Shaul SR, Robins JM. Diffuse idiopathic skeletal hyperostosis (DISH): Forestier's disease with extraspinal manifestations. Radiology. 1975 Jun;115(3):513-24.