| Inclusion Criteria | Exclusion Criteria |
|---|---|
| Skin manifestations of severe acne | Septic osteomyelitis |
| Skin manifestations of palmoplantar pustulosis | Infectious chest wall arthritis |
| Hyperostosis with or without dermatosis | Infectious palmoplantar pustulosis |
| Chronic recurrent multifocal osteomyelitis involving axial or peripheral skeleton, with or without dermatosis | Palmoplantar keratodermia |
| Diffuse idiopathic skeletal hyperostosis | |
| Osteoarticular manifestations of retinoid therapy |