Double bubble sign is seen in A/E
**Core Concept**
The double bubble sign is a radiological finding typically observed on abdominal X-rays, indicative of intestinal obstruction. It is characterized by the presence of two distinct air-filled structures or "bubbles" in the upper abdomen, often representing the duodenum and stomach.
**Why the Correct Answer is Right**
The double bubble sign is classically associated with duodenal atresia or stenosis, where a congenital obstruction prevents normal intestinal flow. This obstruction leads to the accumulation of air in the stomach and the proximal duodenum, giving rise to the characteristic "double bubble" appearance on X-ray. The duodenum and stomach are the primary sites of air accumulation due to their proximity to the obstruction and the lack of intestinal flow.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is likely incorrect, as the double bubble sign is not typically associated with pyloric stenosis. While pyloric stenosis can cause gastric distension, it does not usually result in the characteristic double bubble appearance.
**Option B:** This option may be incorrect, as the double bubble sign is not typically associated with jejunocolic intussusception. Intussusception can cause intestinal obstruction, but it does not usually result in the characteristic double bubble appearance.
**Option C:** This option is likely incorrect, as the double bubble sign is not typically associated with gastric volvulus. While gastric volvulus can cause gastric distension, it does not usually result in the characteristic double bubble appearance.
**Option D:** This option is likely incorrect, as the double bubble sign is not typically associated with cholecystitis. Cholecystitis can cause gallbladder distension, but it does not usually result in the characteristic double bubble appearance.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that the double bubble sign is a classic radiological finding for duodenal atresia or stenosis, and it can be seen in newborns with upper gastrointestinal obstruction. A prompt diagnosis and surgical intervention are crucial to prevent complications and improve outcomes.
**Correct Answer:** A. Duodenal atresia or stenosis.