MediAI

  Meckel's Diverticulum , the most prevalent congenital anomaly of the gastrointestinal tract, remains a "great masquerader" in clinical practice. Often asymptomatic, it can present with life-threatening complications such as massive gastrointestinal bleeding, intussusception, or diverticulitis, mimicking acute appendicitis. This column explores the intricate details of Meckel's Diverticulum diagnosis , Meckel's Diverticulum treatment , and the latest imaging modalities used to identify this vestigial remnant. Pathophysiology of Meckel's Diverticulum Meckel's Diverticulum arises from the incomplete obliteration of the vitelline duct (also known as the omphalomesenteric duct) during the fifth to seventh weeks of gestation. In normal embryonic development, this duct connects the primitive midgut to the yolk sac and should spontaneously involute. When this process fails, a "true diverticulum" is formed—meaning it contains all four layers of th...

  https://doi.org/10.1016/j.athoracsur.2014.08.026 Pectus excavatum , commonly referred to as funnel chest or sunken chest , is the most prevalent congenital chest wall deformity. Characterized by a concave depression of the sternum and adjacent costal cartilages, this condition can range from a minor cosmetic concern to a severe physiological impairment affecting cardiopulmonary function. In this comprehensive column, we explore the intricate details of Pectus excavatum diagnosis , its underlying pathophysiology , and the revolutionary Nuss procedure that has redefined surgical outcomes. Pathophysiology and Epidemiology The exact pathophysiology of Pectus excavatum involves the overgrowth of the costal cartilages, which displaces the sternum posteriorly. While the precise etiology remains under investigation, it is widely considered a multifactorial condition involving genetic predisposition and connective tissue abnormalities, such as those seen in Marfan syndro...