This entity very frequently appears in the oral cavity, sometimes acquiring an enormous size in a short period of time.  It presents as a sole, elevated lesion localized in the lips, tongue, buccal mucosa, but mainly in the gingiva; either with a sessile or pedunculated base, round, semispherical or lobulated, of soft consistency and dark red or purple color. The surface is smooth and glossy, and erodes and bleeds easily when traumatized.  Intraorally it presents a whitish/yellowish exudate of purulent aspect and in the labial semimucosa (lips) it forms bloody scabs.