<unk>  is thought to result from the insufficient killing of bacteria by macrophages. Therefore, the partially digested bacteria accumulate in macrophages and leads to a deposition of iron and calcium. The impairment of bactericidal activity manifests itself as the formation of an ulcer, plaque or papule.<unk>  is associated with patients with a history of immunosuppression due to lymphoma, diabetes mellitus, kidney transplantation, or because of long-term therapy with systemic corticosteroids.
Malakoplakia
Leukoplakia
Hairy leukoplakia
Microspherophakia
Erythroplakia
Epikeratophakia
Telogen effluvium
Aphakia