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Fig. 2 | Annals of Pediatric Surgery

Fig. 2

From: Persistent cloaca: persistence of the challenge

Fig. 2

New classification proposed for stratifying cloaca anatomically according to the level of urogenital confluence in relation to the pubic symphysis. The upper row is a diagrammatic representation for the new classification, while the lower row represents real MRI images for cases of cloaca (mid-sagittal T2WI). P, pubic symphysis; UB, urinary bladder; v, vagina; R, rectum; the transverse white arrow in the lower row points to the lower end of the vagina that corresponds to the level of urogenital confluence. Type 1 (low confluence), urogenital confluence at or below the level of the lower border of pubic symphysis (P); type 2 (intermediate), urogenital confluence at the level of the mid-portion of pubic symphysis; type 3 (high confluence), urogenital confluence at or above the level of the upper border of pubic symphysis

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