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Figure 6


Fig. 6 —28-day-old girl with low mimicking high imperforate anus. Midline sagittal sonogram shows gas-filled distal rectal pouch decompressed by large anocutaneous fistula (arrowheads). Distal end of pouch is difficult to delineate and pouch-to-peritoneum (P) distance (asterisks) is more than 15 mm, fulfilling criterion for high anomaly. In general, anocutaneous fistula indicates low anomaly, making pouch-to-peritoneum measurements unnecessary. S = pubic symphysis, V = vagina.