Final answer:
Meconium ileus is a condition in which the intestinal loops become dilated and have a 'ground glass' appearance. It is diagnosed and treated with a gastrograffin enema, and chronic diarrhea can also lead to rectal prolapse.
Step-by-step explanation:
Meconium ileus is a condition characterized by dilated intestinal loops and a 'ground glass' appearance on imaging. It is diagnosed and treated with a gastrograffin enema, which helps to clear the obstruction. Chronic diarrhea can also cause rectal prolapse. Meconium ileus typically occurs in infants and is associated with certain underlying medical conditions.