Acknowledgments: Josè Adolfo Navarro, MD; Silvia Neri, MD; and Alberto Morabito, MD. Embryology of the Colon and Rectum A sound knowledge base of the gastrointestinal (GI) tract embryologic development is important in understanding colon and rectal anatomy and pathophysiology. The…
Introduction Mesenteric ischemia can be either acute or chronic. The acute variant is a life-threatening disease of sudden onset and has several distinctly different causes. Most patients who are diagnosed with acute visceral ischemia have progressed to the point of…
Introduction Pneumatosis cystoides intestinalis (PCI) is a condition in which multiple gas-filled cysts occur under the serosa or mucosa of the gastrointestinal tract. PCI is uncommon but increasingly is being recognized and reported. PCI was described by Du Vernoi in…