Cavendish classification.
| Grades | Clinical features |
|---|---|
| 1 | Very mild deformity is observed. When covered with clothes the deformity is almost invisible. |
| 2 | The deformity is still mild, but appears as bump. The superomedial portion of the high scapula is convex, forming a bump. |
| 3 | Moderate deformity with 2-5 cm visible elevation of the affected shoulder compared to normal one |
| 4 | Severe deformity with > 5 cm elevation of the affected shoulder accompained by neck webbing. |
Reproduced with permission from: Dilli A, Ayaz UY, Damar C, Ersan O, Hekimoglu B. Sprengel deformity: magnetic resonance imaging findings in two pediatric cases. J Clin Imaging Sci 2011; 1: 13.