A new born presents with discharge of urine from the umbilicus for 3 days. Diagnosis is
**Core Concept**
The underlying principle being tested is the understanding of **patent urachus**, a condition where there's a persistent connection between the bladder and the umbilicus. This condition arises due to the failure of the urachus, a fetal structure, to close after birth.
**Why the Correct Answer is Right**
A patent urachus allows urine to flow from the bladder to the umbilicus, resulting in urine discharge from the umbilical stump. This is a direct consequence of the urachus not obliterated and closed, which normally should occur before birth.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect as it doesn't directly relate to the symptom of urine discharge from the umbilicus.
**Option B:** Incorrect as it doesn't describe the condition of urine discharge from the umbilicus.
**Option C:** Incorrect as it is not relevant to the clinical presentation.
**Why Each Wrong Option is Incorrect (Continued)**
**Option D:** Incorrect, assuming it's not the correct answer choice for patent urachus.
**Clinical Pearl / High-Yield Fact**
Patent urachus is a rare condition but can be diagnosed by the presence of urine discharge from the umbilicus, and it's essential to differentiate it from other causes of umbilical discharge, such as omphalitis.
**Correct Answer:** Correct Answer: D. Patent urachus