Fluid levels are not visible in -: (A) Meconeum ileus, (B) Intussusception, (C) Colon pouch, (D) Duodenal obstruction
Answer is A. Answer is 'a' i.e. Meconeum ileus In meconium ileus meconium is so thick that it is unable to form air-fluid level desptie complete small intestinal obstruction (Note the multiple air-fluid level is a feature of mechanical small bowel obstruction & paralytic ileus).