A 44-year-old man with bilateral eyelid swelling

Area of Science:

• Ophthalmology
• Immunology
• Rheumatology

Background:

• Swollen eyelids are frequently attributed to common conditions such as allergic conjunctivitis, contact dermatitis, eczema, angioedema, and acute sinusitis.
• The differential diagnosis for eyelid swelling is extensive, encompassing numerous systemic and localized inflammatory, infectious, and neoplastic processes.

Observation:

• In patients without a history of allergy or infection, the diagnostic approach should prioritize less common but significant conditions.
• Persistent eyelid swelling, particularly when undiagnosed, necessitates consideration of orbital lymphoid hyperplasia and ocular adnexal lymphoma.
• These lymphoid conditions are clinically and radiologically indistinguishable, posing diagnostic challenges.

Findings:

• The differential diagnosis for swollen eyelids includes thyroid eye disease, blepharitis, Sjögren's syndrome, vasculitides (Churg-Strauss, Wegener's), orbital inflammatory diseases, and IgG4-related diseases.
• Ocular lymphoid hyperplasia and ocular adnexal lymphoma are critical considerations in persistent cases and are not clinically or radiologically distinct.

Implications:

• Early and accurate diagnosis of the underlying cause of eyelid swelling is essential for effective management.
• Timely intervention and appropriate therapy can lead to favorable patient outcomes.
• The broad differential diagnosis underscores the need for a systematic approach to evaluating swollen eyelids.