Regeneration of parietal and visceral peritoneum in the immature animal: A light and electron microscopical study

Abstract

Abstract The healing of visceral and parietal peritoneum has been investigated in the immature animal by both light and electron microscopy. Healing has been found to occur more rapidly in the immature animal when compared with the adult animal. Parietal peritoneum was covered by a new mesothelium in 7 days, while the liver was covered in 5 days. The new mesothelium developed from subperitoneal perivascular connective-tissue cells but it was not possible to determine whether these were primitive mesenchymal cells or fibroblasts. The findings are discussed in relation to the pathogenesis of peritoneal adhesions.