Neonate with Repeated Bile-Stained Vomiting

Neonate with Repeated Bile-Stained Vomiting

A neonate presented with repeated bile-stained vomiting since the first few hours of life. Physical examination showed soft but distended upper abdomen. An abdominal radiograph was performed as an initial examination followed by a water soluble upper GI contrast study.

What radiological abnormalities are seen on the abdominal radiograph and what’s the diagnosis?