Small-Caliber Retinal Vasculitis Associated With Giant Cell Arteritis: A New Finding

Area of Science:

• Ophthalmology
• Rheumatology
• Vascular Medicine

Background:

• Giant cell arteritis (GCA) typically affects medium and large arteries.
• Ocular manifestations of GCA often include visual disturbances, but involvement of small retinal arterioles is less common.

Observation:

• A 75-year-old male presented with symptoms indicative of GCA.
• The patient exhibited cotton-wool spots and extensive retinal vasculitis affecting small arterioles.

Findings:

• The case demonstrates an unusual presentation of GCA involving small retinal arterioles.
• Systemic corticosteroid therapy led to the resolution of retinal vasculitis and cotton-wool spots.

Implications:

• This case highlights the importance of considering GCA in patients with unexplained retinal vasculitis, even when small vessels are involved.
• Early diagnosis and treatment of GCA with corticosteroids can prevent vision loss.
• Further research may elucidate the mechanisms behind GCA's involvement in small retinal vessels.