Familial Mediterranean Fever-Associated Retinal Vasculitis: A Rare Manifestation Successfully Managed with IL-1 Pathway Inhibitors.

Purpose: To investigate the rare manifestation of retinal vasculitis in Familial Mediterranean fever (FMF) and its correlation with specific gene mutations, particularly the MEFV gene, with a focus on the severity of phenotypes and systemic vasculitis.

Methods: A case report of a 45-year-old Armenian patient with FMF history and dual mutations (M680I and M694V) was analyzed. Clinical assessments, including ocular examinations, were conducted at various stages of the disease. Treatment modalities, including prednisone, Anakinra, and Canakinumab, were administered and their effectiveness was assessed.

Results: The patient presented with bilateral ocular pain and decreased vision, exhibiting acute anterior uveitis, perivascular hemorrhages resembling Roth spots, and subsequent features of persistent vascular sheathing and cotton-wool spots. Dual mutations, especially M694V, were associated with a severe phenotype and systemic vasculitis. Treatment with prednisone induced remission, and IL-1 pathway inhibition with Anakinra and Canakinumab successfully managed relapses.

Conclusion: This case underscores the rarity of retinal vasculitis in FMF, particularly involving arteries, and highlights the correlation between specific gene mutations (M680I, M694V) and disease severity. The successful management with IL-1 pathway inhibitors suggests a potential therapeutic approach. Increased clinical awareness, further research, and reporting are crucial for optimizing the understanding and treatment of FMF-related ocular manifestations.