Are there atypical sites of IgG4 related disease in head and neck region? Personal experience and literature review. - Bertolini M; Buono F; Galli A; Bagnasco D; Guastini L; Feltri M; Canevari FRM (European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2025)