Untreated Congenital Hypothyroidism Mimicking Hirschsprung Disease: A Puzzling Case in a One-Year-Old Child

Figure 4

Intestinal transit before levothyroxine sodium replacement therapy, showing a massively dilated stool-filled colon. (a) At 9 hours, an abrupt change between the terminal ileum and cecum occurred, which showed a marked distention, reaching a diameter of 12.5 cm. A massive dilatation of the colon. (b) At 24 hours, contrast persists from cecum to splenic flexure in a dilated colon. (c) After six days, contrast finally reaches sigmoid and rectum, only after a colonic cleansing.

(a)

(b)

(c)