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Updated: Oct 15, 2025

Experimental Autoimmune Uveitis: An Intraocular Inflammatory Mouse Model
Published on: January 12, 2022
Conjunctivitis, episcleritis and anterior uveitis as the first presenting features of granulomatosis with
Lucas Donato Foster1, Michael Nyugen2, Edward Margolin2
1Department of Medicine, University of Western Ontario, London, Ontario, Canada lfoste9@uwo.ca.
Abstract:
Granulomatosis with polyangiitis (GPA) is a rare disorder characterised by inflammation of small-sized and medium-sized blood vessels that result in damage to various organ systems, but it most commonly affects the respiratory tract and kidneys. It is one of the few entities that can present with ocular inflammation as well as renal impairment at the same time. We describe a case of a 38-year-old man with conjunctivitis, episcleritis, anterior uveitis as a first manifestation of GPA. His presentation with red eye and anterior uveitis prompted further workup, which revealed acute renal failure (creatinine 442 mmol/L), elevated inflammatory markers (erythrocyte sedimentation rate of 85 mmol/hour and C reactive protein of 72 mg/L), and a c-antineutrophil cytoplasmic antibody titre >8. An urgent renal biopsy was performed demonstrating necrotising crescentic glomerulonephritis, which led to the final diagnosis of GPA. Treatment induction with intravenous methylprednisolone and plasmapheresis followed by an oral prednisone taper and intravenous rituximab infusions leading to resolution of all symptoms and normalisation of kidney function. This report highlights conditions that can present with both ocular inflammation and renal dysfunction with a focus on GPA and its ocular manifestations.
Insights
Granulomatosis with polyangiitis (GPA) can initially manifest with eye inflammation and kidney failure. Early diagnosis and treatment, including steroids and rituximab, are crucial for symptom resolution and kidney function recovery.
Area of Science:
- Ophthalmology
- Nephrology
- Rheumatology
Background:
- Granulomatosis with polyangiitis (GPA) is a rare systemic vasculitis affecting small and medium blood vessels.
- GPA commonly impacts the respiratory tract and kidneys, but can also involve ocular and renal systems concurrently.
Observation:
- A 38-year-old male presented with conjunctivitis, episcleritis, and anterior uveitis as initial symptoms.
- Further investigations revealed acute renal failure, elevated inflammatory markers, and positive c-antineutrophil cytoplasmic antibodies.
Findings:
- Renal biopsy confirmed necrotizing crescentic glomerulonephritis, leading to a GPA diagnosis.
- Ocular inflammation and renal dysfunction co-occurred, highlighting a less common GPA presentation.
Implications:
- This case underscores the importance of considering GPA in patients with simultaneous ocular and renal manifestations.
- Prompt diagnosis and multi-modal treatment, including immunosuppressants and plasmapheresis, can lead to favorable outcomes in GPA.
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