Clinical features of Choledochal cyst in adult are
**Core Concept**
Choledochal cysts are congenital anomalies of the bile ducts characterized by a dilatation of the intrahepatic or extrahepatic bile ducts. This condition is often diagnosed in adulthood, where symptoms may be subtle or absent but can progress to complications such as cholangitis, pancreatitis, and even malignancy.
**Why the Correct Answer is Right**
The clinical features of choledochal cysts in adults are often non-specific and may include right upper quadrant abdominal pain, jaundice, and weight loss. The pathophysiology involves chronic bile stasis, inflammation, and potential for malignant transformation. A key feature is the presence of a palpable mass or palpable liver, which can be a late finding. The diagnosis is often confirmed by radiological imaging, such as MRCP or ERCP.
**Why Each Wrong Option is Incorrect**
**Option A:** While abdominal pain is a feature, it is not the most distinctive symptom of choledochal cysts in adults.
**Option B:** Jaundice is a symptom but not the most characteristic one for this condition.
**Option C:** While weight loss can occur, it is not a specific enough symptom to distinguish choledochal cysts from other causes.
**Clinical Pearl / High-Yield Fact**
A key clinical correlation is the association of choledochal cysts with an increased risk of cholangiocarcinoma, a type of bile duct cancer. This highlights the importance of early diagnosis and treatment to prevent potential malignancy.
**Correct Answer: C. Jaundice.**