Location of gas on the abdominal x-ray may suggest the the underlying cause. Differential diagnosis
Chilaiditi syndrome: symptomatic hepatodiaphragmatic interposition associated with abdominal pain, nocturnal vomiting, anorexia, and abdominal distension.
Demetrius Chilaiditi (1883 – 1975) was an Austrian born, Ottoman Radiologist of Greek descent. Eponymously affiliated with Chilaiditi sign and syndrome described in 1910