(A) Ulcers with irregular and raised borders on the soft palate. (B) Ulcers with irregular and raised borders on gingival margin and areas of erythema and increased gingival volume of fibrous consistency with areas of necrosis. (1) Ulcers with irregular and raised borders on hard palate and gingival margin. (D) Ulcers with irregular and raised borders on the right cheek mucosa.