Gout and Psoriatic Disease Overlap Presents Diagnostic and Management Challenges
The coexistence of gout and psoriatic disease (PD) is increasingly recognized in clinical practice, with overlapping phenotypes and shared comorbidities complicating diagnosis and treatment decisions. A recent review examines this intersection—sometimes referred to as “Psout”—and highlights implications for rheumatologists managing patients with inflammatory arthritis.
Epidemiologic studies have documented higher rates of hyperuricemia and gout among patients with PD, as well as increased prevalence of PD in individuals with gout. Hyperuricemia is reported in up to 30% of patients with PD and contributes to metabolic syndrome, a comorbidity common to both conditions. The review notes that this association is “likely due to shared multimorbidity and perhaps to a smaller extent, the direct role of hyperuricemia in triggering the release of proinflammatory cytokines in PD.”
Beyond metabolic overlap, inflammatory pathways may converge. Monosodium urate crystals are known to activate innate immunity via the inflammasome and neutrophil extracellular trap formation, but the authors suggest they may also influence adaptive immune responses. In psoriasis, urate-related pathways may contribute to antigen presentation and T-cell activation, promoting cytokines such as IL-17.
Clinically, gout and psoriatic arthritis (PsA) may present with similar articular and radiologic findings, increasing the risk of misclassification. The authors emphasize that “there is often a significant overlap in clinical and radiological presentation of gout and PsA.” In patients who show an atypical response to standard treatment for either condition, evaluation for the coexisting disease should be considered.
Evidence guiding treatment in overlapping disease remains limited. Small trials suggest that managing hyperuricemia may positively influence PD activity, though robust data are lacking. No studies have specifically examined gout activity in patients treated for PD.
Reference
Chandratre P, Sabido-Sauri R, Zhao SS, Abhishek A. Gout, hyperuricemia and psoriatic arthritis: an evolving conundrum. Curr Rheumatol Rep. 2025;27(1):22. Published online Mar 27, 2025. doi:10.1007/s11926-025-01187-8
