Robert L. Lebowitz, M.D. Children' s Hospital, Harvard Medical School Boston, Massachusetts

In the baby with rectourethral fistula (fig 3), there was also reflux into the utricle, and calcified intraluminal meconium (fig 4). When meconium and urine mix in the lumen of the colon of the fetus, the meconium sometimes calcifies. (r=rectum, b=bladder, u=utricle)

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