Atlas · Plate VII · General and Oral Pathology · 04
Red and pigmented lesions
Red lesions range from the reactive pyogenic granuloma, which bleeds easily and is called a pregnancy tumor when it appears in pregnancy, to the gingiva-only peripheral giant cell granuloma and the hemangioma, which blanches under pressure. Erythroplakia is the red patch with the highest cancer risk. Among pigmented lesions, the amalgam tattoo is most common, physiologic pigmentation is symmetric, and oral melanoma is rare.
High-yield facts · 6
- Pyogenic granuloma is a reactive red lump that bleeds easily, often on the gingiva; it is called a "pregnancy tumor" in pregnancy.T5
- Peripheral giant cell granuloma occurs only on the gingiva or alveolar ridge.T5
- Hemangioma blanches with pressure (diascopy).T5
- Amalgam tattoo is the most common oral pigmented lesion; it is flat, blue-gray and does not change.T5
- Melanoma is rare in the mouth; the palate and maxillary gingiva are the usual sites; ABCDE criteria help screening.T5
- Physiologic (racial) pigmentation is symmetric and usually on attached gingiva.T5
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