Synovitis, Acne, Pustulosis, Hyperostosis, and Osteitis Syndrome

**Semantic type:** Disease or Syndrome

**Definition:** A syndrome characterized by synovitis, acne, pustulosis, hyperostosis, and non-infectious osteomyelitis. Includes a spectrum of aseptic neutrophilic dermatoses associated with aseptic osteoarticular lesions.

**Synonyms:** - PPHS - PPHS - Pustulo-Psoriatic Hyperostotic Spondyloarthritis - Pustulo-Psoriatic Hyperostotic Spondyloarthritis - SAPHO Syndrome - SAPHO Syndrome