Sonographic findings of immunoglobulin G4-related sclerosing sialadenitis

We evaluated the sonographic findings of immunoglobulin G4-related sclerosing sialadenitis (IgG4-SS).Nineteen patients with IgG4-SS and 12 healthy volunteers (controls) were enrolled. The following sonographic features were evaluated: (1) enlargement of the submandibular gland by measurement of the longitudinal diameter and thickness; (2) the contour texture of the submandibular gland (smooth or rough); (3) the internal echo texture, categorized...