<unk>  is thought to comprise a spectrum of disorders that share some clinical, radiologic and pathologic characteristics. An entity known as chronic recurrent multifocal osteomyelitis (CRMO) was first described in 1972. Subsequently in 1978 several cases of CRMO were associated with clinical findings of palmoplantar pustulosis. Since then, a number of associations between skin conditions and osteoarticular disorders have been reported with a variety of different names including sternocostoclavicular hyperostosis, pustulotic arthro-osteitis, and acne-associated spondyloarthropathy.<unk>  was coined in 1987 and basically represents a spectrum of inflammatory osteitis which may or may not be associated with dermatologic pathology.
SAPHO syndrome
Wiskott-Aldrich syndrome
Chédiak-Higashi syndrome
Alagille syndrome
Schwartz–Jampel syndrome
Kasabach-Merritt syndrome
Severe combined immunodeficiency
Common variable immunodeficiency