Neutrophilic panniculitis in infancy: a cutaneous manifestation of juvenile rheumatoid arthritis.

Neutrophilic panniculitis is rare and is classified as a panniculitic member of the neutrophilic dermatoses spectrum. In affected patients, an underlying systemic disease, such as myelodysplasia, is often present. We describe an infant with juvenile rheumatoid arthritis who developed neutrophilic panniculitis. Neutrophilic panniculitis clinically mimics other panniculitides and biopsy specimen can be diagnostic. Identification of this entity can aid the diagnosis of the underlying systemic process.