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Conflicts of interest: none declared.

Dear Editor, Opportunities exist for cross‐specialty learning between dermatology and other medical disciplines, to the benefit of patients, clinical decision making and professional development. The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis promotes the concept of ‘psoriatic disease’ to encompass psoriasis and psoriatic arthritis, and their new disease management recommendations emphasize the importance of collaborative working between dermatologists and rheumatologists.1 While the group focuses primarily on adult disease we suggest that a similar model should exist for the paediatric population. Juvenile psoriatic arthritis (JPsA) is a separate disease from psoriatic arthritis in adults and is a distinct subset of juvenile idiopathic arthritis, an inflammatory arthritis with onset under the age of 16 years and unknown aetiology.2 Cutaneous psoriasis and psoriatic nail disease are both core components of the diagnostic classification of JPsA.3 However, recognition of psoriasis in children can be more challenging compared with adult disease, as the signs are often more subtle.4

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