Witten By Prof. Khalil Al-Salem IgG4-related disease is an increasingly recognized immune-mediated condition that can affect multiple organs. However, orbital involvement is one of its most striking presentations. IgG4 orbitopathy often presents with ocular proptosis, eyelid swelling, and lacrimal gland enlargement. Although these findings may resemble other orbital diseases, the underlying process is unique. Therefore, … تابع قراءة IGG4 Orbitopathy