All of the following are suggestive of low lesion in Anorectal malformation except ?
**Core Concept**
Anorectal malformations (ARMs) are congenital anomalies of the anorectal region, which can be classified based on the level of the malformation. Low lesions in ARMs are characterized by a more distal (lower) location of the rectal pouch, often with a more favorable prognosis.
**Why the Correct Answer is Right**
A low lesion in ARM is typically associated with a perineal fistula or a small vaginal opening, which allows for easier access and repair. The presence of a perineal fistula or a small vaginal opening is a key feature of low lesions, making them more amenable to surgical correction.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because a high lesion in ARM is typically characterized by a more proximal (higher) location of the rectal pouch, often with a more complex repair and a higher risk of complications.
**Option B:** This option is incorrect because a vestibular fistula is actually suggestive of a low lesion in ARM, as it is a type of perineal fistula that allows for easier access and repair.
**Option C:** This option is incorrect because a rectovaginal fistula can be seen in both low and high lesions in ARM, and its presence alone is not sufficient to determine the level of the malformation.
**Clinical Pearl / High-Yield Fact**
In ARM, the presence of a perineal fistula or a small vaginal opening is a key feature of low lesions, which often have a more favorable prognosis and are more amenable to surgical correction.
**Correct Answer: C. Rectovaginal fistula**