Hirschsprung disease barium enema

A: Plain abdominal radiograph showing a PARTZ at rectosigmoid, arrow. B: Plain abdominal radiograph showing a PARTZ at midsigmoid, arrow. C: Plain abdominal radiograph showing a PARTZ at descending colon, arrow. D: Contrast enema showing a CETZ at rectosigmoid, arrow. E: Contrast enema showing a CETZ at midsigmoid, arrow. F: Contrast enema showing a CETZ at descending colon, arrow. PARTZ, Plain abdominal transition zone; CETZ, Contrast enema transition zone | By Pratap et al. BMC Pediatrics 2007 7:5 doi:10.1186/1471-2431-7-5, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=2903347