“…In IgG4-related orbital diseases, it is known that the major lacrimal gland and other soft tissues of the orbit may be involved. Moreover, it is reported that lesions can involve the orbital nerve [7,8]. Until now, little attention has been paid to the In this study, IONE was only observed in IgG4-related orbital diseases and MALT associated with IgG4-related orbital diseases, whereas it was not observed in MALT which does not associate with IgG4-related orbital diseases, RLH, or idiopathic orbital inflammation, which are not related to IgG4.…”