CLINICA CLAROS / SCIENCE PHOTO LIBRARY CLINICA CLAROS / SCIENCE PHOTO LIBRARY
Oral granuloma. Close-up of a granuloma (upper centre) on the soft palate of a patient's mouth. Granulomas are an area of inflammation that occur in many conditions. They are a collection of macrophage white blood cells formed when the immune system isolates substances it thinks are foreign bodies but is unable to eliminate them. Here, the granuloma formed under the person's dentures.
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