Causes of Intestinal Obstruction - Differential Diagnosis Lesions Extrinsic to the Intestinal Wall: • Adhesions: Postoperative, Congenital, Postinflammatory • Hernia: External abdominal wall (congenital or acquired), Internal, Incisional • Congenital: Annular pancreas, Malrotation (rotational abnormality), Omphalomesenteric duct remnant • Neoplastic: Carcinomatosis, Extraintestinal neoplasm • Inflammatory: Intra-abdominal abscess, "Starch" peritonitis • Miscellaneous: Volvulus, Gossypiboma, Superior mesenteric artery syndrome Lesions Intrinsic to the Intestinal Wall: • Congenital: Intestinal atresia, Meckel's diverticulum, Duplications/cysts • Inflammatory: Crohn's disease, Eosinophilic granuloma • Infections: Tuberculosis, Actinomycosis, Complicated diverticulitis, Appendicitis • Neoplastic: Primary neoplasms, Metastatic neoplasms • Miscellaneous: Intussusception, Endometriosis, Radiation enteropathy/stricture, Intramural hematoma, Ischemic stricture • Intraluminal/obturator obstruction: Gallstone, Enterolith, Phytobezoar, Parasite, Swallowed foreign body (magnets, illicit drug mules, sharp objects that perforate the bowel, etc) #Intestinal #Obstruction #Differential #Diagnosis #SBO #bowel #Causes #gastroenterology
