Lupus erythematosus. 4. Investigation of the oral cavity: a) The antibody picture in studies of oral lesions, b) Immunopathology, c) S.L.E. and Sjogren syndrome; d) L.E. and collagen disease, e) The importance of oral lesions in L.E.

The AA. in this note IV report the most recent acquisitions about hematology, serology and immunopathologic findings; describe the association and the overlap between oral lesions in Lupus Erythematosus and other diseases. Finally analysed the importance of establishing the diagnosis of oral manifestations of Lupus Erythematosus.