Which type of choledocholithiasis forms within the duct due to bile stasis?

Which type of choledocholithiasis forms within the duct due to bile stasis?

• A. Primary
• B. Secondary
• C. Tertiary
• D. Recurrent

Answer: (A)

Stones forming in the duct itself because bile is stagnant describe primary choledocholithiasis. When bile flow slows or becomes infected within the common bile duct, calcium bilirubinate can precipitate right there and develop into stones without involving the gallbladder. In contrast, secondary stones originate in the gallbladder and migrate into the duct, so they aren’t formed de novo in the duct. Terms like tertiary or recurrent refer to stones that recur after treatment or in special scenarios, not the initial in-duct formation due to stasis.

Stones forming in the duct itself because bile is stagnant describe primary choledocholithiasis. When bile flow slows or becomes infected within the common bile duct, calcium bilirubinate can precipitate right there and develop into stones without involving the gallbladder. In contrast, secondary stones originate in the gallbladder and migrate into the duct, so they aren’t formed de novo in the duct. Terms like tertiary or recurrent refer to stones that recur after treatment or in special scenarios, not the initial in-duct formation due to stasis.