Ocular adnexal marginal zone B cell lymphoma infiltrated by IgG4-positive plasma cells

Abstract

IgG4-positive plasma cells had infiltrated into ocular adnexal MZBLs in 9% of cases. It is suggested that ocular adnexal MZBLs with IgG4-positive plasma cells have unique histological and serological characteristics that overlap those of ocular adnexal IgG4-related lymphoplasmacytic infiltrative disorder and systemic conditions.