[IgG4-Related Orbitopathy as an Important Differential Diagnosis of Advanced Silent Sinus Syndrome. German version].

We report the case of a patient referred to us after multiple unsuccessful paranasal sinus operations who presented with enophthalmos and a resultant migratory keratitis with a suspected diagnosis of silent sinus syndrome. Preservation of the orbit was no longer feasible. After five years without a definitive diagnosis, we ascertained that this was a case of IgG4-related disease. DISCUSSION: IgG4-related disease represents an important element in the differential diagnosis of chronic advanced diseases of the orbit and paranasal sinuses. The diagnosis should be considered in the case of unclear disease presentations. Typical histological findings include a storiform pattern of fibrosis, vasculopathy, and tissue infiltration by IgG4 plasma cells. PMID: 32060570 [PubMed - as supplied by publisher]
Source: HNO - Category: ENT & OMF Tags: HNO Source Type: research