• Intestinal obstruction caused by congealed MECONIUM in the distal ILEUM and CECUM. It presents shortly after birth as a failure to pass meconium and frequently occurs in infants with CYSTIC FIBROSIS.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• Obstruction of the intestine due to abnormally thick meconium.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• Small intestinal obstruction that results from the impaction of thick meconium in the distal small intestine.
  NCI Thesaurus
  U.S. National Cancer Institute, 2021
• Meconium ileus is obstruction of the terminal ileum by abnormally tenacious meconium; it most often occurs in neonates with cystic fibrosis. Meconium ileus accounts for up to 33% of neonatal small-bowel obstructions. Symptoms include emesis that may be bilious, abdominal distention, and failure to pass meconium in the first several days...
  Merck Manuals
  Merck & Co., Inc., 2020
• Meconium is the material found in the intestine in a newborn. It consists of succus entericus that is made up of bile salts, bile acids, and debris that is shed from the intestinal mucosa during intrauterine life.
  Medscape
  WebMD, 2019