A child with recurrent urinary tract infection is most likely to show
**Core Concept**
The question tests the understanding of the pathophysiology of urinary tract infections (UTIs) in children, particularly the relationship between UTIs and vesicoureteral reflux (VUR). VUR is a condition where urine flows from the bladder back into the ureters, increasing the risk of UTIs.
**Why the Correct Answer is Right**
Recurrent UTIs in children are often associated with VUR due to the abnormal flow of urine from the bladder back into the ureters. This increases the risk of bacterial colonization and infection. The presence of VUR can be detected using imaging studies such as voiding cystourethrography (VCUG) or ultrasound. The mechanism involves the abnormal anatomy of the ureterovesical junction, which allows urine to flow back into the ureters, leading to infection.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to the question. The question specifically asks about the condition most likely to be associated with recurrent UTIs in children, not about the treatment or management of UTIs.
**Option B:** While constipation can be a contributing factor to UTIs in children, it is not the most likely underlying condition in cases of recurrent UTIs.
**Option C:** Neurogenic bladder can be a cause of UTIs in children, but it is not the most common underlying condition in cases of recurrent UTIs.
**Clinical Pearl / High-Yield Fact**
Recurrent UTIs in children are often associated with an underlying anatomical abnormality, such as VUR, which increases the risk of infection. A high index of suspicion and prompt evaluation with imaging studies are essential in diagnosing and managing this condition.
**Correct Answer: C. Neurogenic bladder**