Hernia of the diaphragm with displacement of portions of the gastrointestinal tract may be diagnosed before birth using fetography. Swallowed amniotic fluid containing positive contrast material will allow visualization of the herniated bowel when roentgenograms are taken 6 to 24 hours after contrast injection. Prompt operative treatment after delivery of an infant with this disorder may minimize the development of hypoxemia and acidosis commonly noted in these infants. In addition, appropriate parental counseling may be started. CASE REPORT A 3,000-g white girl was delivered to a 36-year-old, gravida 10, para 1, abortus 8, class C diabetic mother who had essential hypertension.