A neonate is noted to have bilious vomiting at 6 hours of life with abdominal distention. An X-ray is ordered (see image, showing a large rounded gas-filled bubble with a paucity of distal bowel gas). The most likely diagnosis is:
Duodenal atresia
Bilious vomiting presenting within the first hours of life with a radiograph showing a dilated stomach and proximal duodenum (the classic 'double bubble' sign) with absent distal gas is pathognomonic of duodenal atresia. Pyloric stenosis presents later (3-6 weeks) with non-bilious vomiting, and esophageal atresia typically causes non-bilious regurgitation/drooling rather than bilious vomiting.
Important Questions from Congenital Disorders
- To prevent recurrence, expectant mothers with a previous fetus with neural tube defect should receive folic acid daily at the dose of :
Consider the following statements regarding non-invasive prenatal screening (NIPS) for screening high risk pregnancies for aneuploidies:
1. It is carried out on maternal blood.
2. It is done before 10 weeks gestation.
3. It has a negative predictive value of about 98%.
4. Invasive testing is needed for confirmation of a positive test.
Which of the statements given above are correct?
- The risk of Down syndrome is 100% in the offspring, if:
Which of the following are examples of genomic imprinting?
1. Angelman syndrome
2. Williams syndrome
3. Prader-Willi syndrome
4. DiGeorge syndrome
Select the correct answer using the code given below:
- To reduce the risk of neural tube defects in the baby, which of the following are recommended?
