Courvoisier’s law is related to:
**Core Concept**
Courvoisier's law is a clinical correlation that associates a palpably distended gallbladder with obstructive jaundice in the absence of gallstones. This principle is based on the anatomic relationship between the gallbladder and the common bile duct, and the clinical manifestation of obstructive jaundice.
**Why the Correct Answer is Right**
In Courvoisier's law, a distended gallbladder is typically associated with obstructive jaundice due to a malignant obstruction of the common bile duct, such as a pancreatic head tumor. This is because the gallbladder is not able to contract and empty due to the obstruction, leading to its distension. The absence of gallstones in this scenario is a key point, as gallstones are more commonly associated with acute cholecystitis and are not typically seen in cases of obstructive jaundice due to malignancy.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not related to Courvoisier's law, as it does not involve the clinical correlation between a distended gallbladder and obstructive jaundice.
* **Option B:** While gallstones can cause obstructive jaundice, Courvoisier's law specifically refers to the absence of gallstones in cases of distended gallbladder and obstructive jaundice.
* **Option C:** This option is not relevant to Courvoisier's law, as it does not describe the clinical correlation between a distended gallbladder and obstructive jaundice.
**Clinical Pearl / High-Yield Fact**
Remember that Courvoisier's law is a clinical correlation that helps differentiate between obstructive jaundice due to gallstones and obstructive jaundice due to a malignant obstruction of the common bile duct. A palpably distended gallbladder with obstructive jaundice in the absence of gallstones is highly suggestive of a malignant obstruction.
**Correct Answer:** C.