[Hypereosinophilic syndrome with ocular involvement]

Area of Science:

• Cardiology
• Ophthalmology
• Hematology

Background:

• Idiopathic hypereosinophilia is a rare condition characterized by persistent elevation of eosinophils.
• Löffler endocarditis is a restrictive heart disease associated with hypereosinophilic syndromes.
• Ocular manifestations of hypereosinophilic syndromes are uncommon but can be severe.

Observation:

• A 19-year-old male presented with idiopathic hypereosinophilia and Löffler endocarditis.
• Retinal arteriolar occlusions were identified in the pre-equatorial region.
• Angiography confirmed the presence of these occlusions.

Findings:

• Histological examination revealed arterioles obliterated by a fibrinous coagulum.
• No signs of vasculitis were present in the affected arterioles.
• Clinical data suggested an embolic source for the retinal occlusions.

Implications:

• This case highlights a potential embolic mechanism for retinal vascular occlusion in patients with hypereosinophilia and Löffler endocarditis.
• Understanding the etiology of ocular complications is crucial for timely diagnosis and management.
• Further research may elucidate the specific pathways leading to embolic events in this condition.