Presence of immunoglobulin-producing cells in periapical lesions.
D000917:Antibody Formation; D007136:Immunoglobulins; D010482:Periapical Abscess / Q000276:immunology*; D010484:Periapical Granuloma / Q000276:immunology*; D011842:Radicular Cyst / Q000276:immunology*
D007136:Immunoglobulins