Investigations for Behçet syndrome

There are no specific investigations that confirm the diagnosis of Behçet syndrome. If Behçet syndrome is suspected on clinical features, refer patients to a specialist for confirmation of the diagnosis; see Diagnosis of Behçet syndrome based on clinical features.

Inflammatory markers, such as erythrocyte sedimentation rate (ESR) and serum C-reactive protein (CRP) concentration, may be elevated and helpful in monitoring disease activity.

Aspiration of synovial fluid from joints affected by arthritis in Behçet syndrome most commonly reveals sterile inflammatory fluid. For more information on synovial fluid analysis, see Synovial fluid analysis: typical findings in specific conditions.

Other investigations (eg radiology, biopsy) are dependent on the individual clinical presentation.