A Case of Psoriasis Concurrently Complicated by Sacroiliitis and Myalgic Encephalomyelitis/Chronic Fatigue Syndrome.
Iijima, Mami, Miyagaki, Tomomitsu, Nakajima, Kaori et al. · Cureus · 2025 · DOI
Quick Summary
This case report describes one patient who developed psoriasis (a skin condition), sacroiliitis (inflammation of joints in the lower back), and ME/CFS all around the same time. The researchers reviewed what is known about how these three conditions might be connected through shared immune system problems. The study suggests that people with psoriasis may be at higher risk of developing ME/CFS, possibly because both conditions involve similar types of inflammatory immune responses.
Why It Matters
Understanding connections between inflammatory skin conditions and ME/CFS may help identify patients at risk and guide future research into common immune mechanisms. This work supports the growing evidence that ME/CFS has immunological roots and may share pathways with other inflammatory disorders, potentially opening new avenues for diagnosis and treatment.
Observed Findings
One patient presented with psoriasis exacerbation, sacroiliitis, and ME/CFS that developed concurrently
Population-based studies show patients with chronic inflammatory skin dermatoses are more likely to develop ME/CFS
Both psoriasis and ME/CFS involve dysregulation of inflammatory cytokines
Shared immunological abnormalities exist between psoriasis and ME/CFS involving nervous, immune, and endocrine system interactions
Inferred Conclusions
Inflammatory skin conditions like psoriasis may be associated with increased risk of developing ME/CFS
Common immunological mechanisms involving inflammatory cytokine dysregulation may underlie both conditions
Shared pathophysiological pathways involving neuro-immune-endocrine dysfunction warrant further investigation
Remaining Questions
What is the precise mechanism linking psoriasis to ME/CFS development?
Are specific inflammatory cytokine profiles predictive of ME/CFS onset in patients with psoriasis?
How frequently do these three conditions occur together, and what is the incidence compared to the general population?
What This Study Does Not Prove
This single case report does not prove that psoriasis causes ME/CFS or sacroiliitis. Correlation observed in one patient cannot establish causation, and individual cases cannot determine whether these conditions share a common cause, occur sequentially, or are coincidental. Larger controlled studies are needed to confirm any causal relationships.