: The open mucosal defect is completely closed by new epithelium, meaning there is no longer a raw or exposed ulcer bed. However, the area remains highly vascularized, presenting as a bright red, star-like (stellate) scar due to the dense networks of new capillaries beneath the surface.
This phase is characterized by the active regrowth of new tissue (regenerating epithelium) over the ulcer crater. The progression from H1 to H2 shows the ongoing reduction in the size of the ulcer defect. sakitamiwa classification
Proposed by Sakita and Miwa, this classification system breaks down the ulcer life cycle into distinct stages based on endoscopic appearance. It is designed to track the morphological changes of the ulcer crater over time. The primary stages include: The acute phase of the ulcer. Healing (H1, H2): The phase where regeneration begins. : The open mucosal defect is completely closed
A thin white coating remains, but regenerating epithelium (new skin-like lining) begins to appear at the ulcer margins, often forming a "palisade" or star-like pattern as it creeps inward. The progression from H1 to H2 shows the
Understanding the Sakita-Miwa Classification: The Gold Standard for Gastric Ulcer Staging