Presentation
Imperforate anus
Patient Data
Age: Neonate
Gender: Female
From the case:
Imperforate anus
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Gaseous distension of the bowel loops.
Lateral invertogram is taken to show the position of the most distal portion of the rectum to determine whether it is a high or low anal atresia.
Case Discussion
Plain lateral invertogram is used to investigate the extent of defect in the anal or rectal atresia. The anus is marked with radiopaque marker and the baby is inverted. A lateral radiograph is taken: gas within the rectum will rise to the highest point indicating the extent of the atresia.