[Pyostomatitis vegetans. A specific marker of Crohn disease and ulcerative colitis]

Pyostomatitis vegetans is a rare disease of the oral cavity with characteristic clinical and histopathological findings. Its importance lies in its high correlation with inflammatory diseases of the intestinal tract. The present case report and a review of the literature are taken as a basis to discuss the disease as an entity. Pyostomatitis vegetans is a specific marker for ulcerative colitis and Crohn's disease.