International Study Group criteria: recurrent oral ulceration is MANDATORY plus ≥2 other features.
The Behçet Disease — ISG Criteria is a rheumatology scoring tool used in paediatric practice. International Study Group criteria: recurrent oral ulceration is MANDATORY plus ≥2 other features. It scores 5 criteria and interprets the total across 3 bands, so the number always arrives with the severity it implies rather than on its own. In PediAid each criterion is shown as a labelled option with the weight it carries, so the total can be checked rather than taken on trust.
5. They are MANDATORY - Recurrent oral ulceration ≥ 3 times in 12 months; Recurrent genital ulceration or scarring; Eye lesions - anterior/posterior uveitis, cells in vitreous, or retinal vasculitis; Skin lesions - erythema nodosum, pseudofolliculitis, papulopustular lesions, acneiform nodules; Positive pathergy test read at 24-48 hours.
The total is interpreted as: any score - Criteria not met: recurrent oral ulceration is mandatory - without it, Behçet disease cannot be classified by ISG criteria; 4 criteria or more - Oral ulcers only: mandatory oral ulceration present, but ≥2 additional features are required to classify; 6 criteria or more - Criteria MET: recurrent oral ulceration plus ≥2 additional criteria - classifies as Behçet disease. Assess for ocular, neurological and vascular involvement.
No. It is a structured way to record and communicate severity. A clinician concerned about a child should act on that concern regardless of the total.
Paediatric-specific PEDBD criteria also exist and may perform better in children.
Yes. Score definitions are bundled with the PediAid app, so the score computes without a connection.