Rectal Prolapse in a 5-Month-Old Boy

Figure

Figure>THE CASE:

This image was obtained from a 5-month-old boy who was brought to the emergency department (ED) by his parents who noted new-onset rectal prolapse. The prolapse had promptly recurred following initial successful reduction under sedation in the ED. A surgical consultation was obtained, and abdominal radiographs were requested.

What diagnostic clues do you read in these images?

• A. There is a soft tissue mound noted surrounded by a crescent of air, consistent with intussusception.

• B. There is a small-bowel obstruction.

• C. There is a left lower quadrant mass.

• D. There are findings that suggest that the child has been abused.

Answer to Last Month's Online Challenge

To read the entire case, see

Genetic Disorders: Neonate With Hypotonia and Subtle Anomalies

on page 69 of this issue.