“…ILPMD has appeared under a variety of names in the foregoing literature, many of which are specific to a particular anatomic location. 17–28 However , in this review of 28 such lesions, we have reached the conclusion that they all represent the same basic pathobiological entity, which is clearly different from LP, plasmacytoma and spirochete‐mediated infectious lesions. Our histologic findings are consonant with those noted in previous studies of plasma‐cell‐rich mucocutaneous lesions, 26,29 some of which also reported occasional Russell bodies; scattered neutrophils and lymphocytes; erosions and surface epithelial abnormalities (either atrophy or hyperplasia) 10,12 and subepithelial fibrosis.…”