**Core Concept**
Choledocholithotomy is a surgical procedure that involves the removal of a stone from the common bile duct. This procedure is typically performed in cases where a gallstone has migrated into the common bile duct and become lodged, causing obstructive jaundice or other complications.

**Why the Correct Answer is Right**
The correct answer, D. Removal of common bile duct stone, is the most accurate description of choledocholithotomy. This procedure is a specific type of surgery that targets the removal of stones from the common bile duct, which is a critical area of the biliary system. During the procedure, the surgeon will usually make an incision in the abdomen, locate the common bile duct, and then remove the stone through an incision or by using a scope. The common bile duct is a muscular tube that carries bile from the liver and gallbladder into the small intestine, and stones in this area can cause significant problems if left untreated.

**Why Each Wrong Option is Incorrect**
**Option A:** Removal of ureteric stone is incorrect because choledocholithotomy specifically targets stones in the common bile duct, not the ureter. The ureter is a separate tube that carries urine from the kidneys to the bladder.

**Option B:** Removal of gall stone is incorrect because while gallstones can sometimes migrate into the common bile duct, choledocholithotomy is specifically focused on removing stones from the common bile duct, not the gallbladder. Removing a gallstone from the gallbladder is a different procedure.

**Option C:** Removal of gall bladder is incorrect because choledocholithotomy does not involve removing the gallbladder. The gallbladder is a separate organ that stores bile, and removing it is a distinct surgical procedure known as cholecystectomy.

**Clinical Pearl / High-Yield Fact**
A key clinical correlation to remember is that gallstones can migrate into the common bile duct, causing obstructive jaundice or pancreatitis. This highlights the importance of prompt diagnosis and treatment of gallstones to prevent complications.

✓ Correct Answer: D. Removal of common bile duct stone