Questions and Answers
What type of choledochal cyst is characterized by fusiform cystic dilation of the extrahepatic duct?
What is a Type II choledochal cyst?
True diverticulum of supraduodenal extrahepatic duct.
What is a Type III choledochal cyst also known as?
Choledochocele
What characterizes a Type IV choledochal cyst?
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What is a Type V choledochal cyst?
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Who is more likely to have a choledochal cyst?
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What is the classic triad of symptoms associated with choledochal cysts?
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What are some complications associated with choledochal cysts?
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What is considered the gold standard modality for the diagnosis of choledochal cysts?
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Study Notes
Types of Choledochal Cysts
- Type I: Fusiform cystic dilation of the extrahepatic duct and common bile duct; most prevalent type.
- Type II: A true diverticulum of the supraduodenal extrahepatic duct.
- Type III: Dilation is restricted to the intraduodenal bile duct, also known as choledochocele; located within the duodenal wall.
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Type IV: Characterized by multiple biliary cysts with at least one affecting the extrahepatic bile duct.
- Subtype a: Involves intra and extrahepatic dilatation.
- Subtype b: Involves extrahepatic dilatation only.
- Type V: Intrahepatic biliary cysts only, which can be single or multiple; associated with Caroli disease when multiple intrahepatic cysts are present.
Demographics
- Choledochal cysts are more commonly found in Asian females.
Clinical Symptoms
- Classic triad includes:
- Recurrent right upper quadrant (RUQ) pain.
- Jaundice.
- Palpable abdominal mass.
Complications
- Possible complications of choledochal cysts include:
- Formation of stones.
- Cholangitis.
- Pancreatitis.
- Increased risk of malignant degeneration, specifically cholangiocarcinoma or gallbladder cancer.
Diagnostic Techniques
- ERCP (Endoscopic Retrograde Cholangiopancreatography) is regarded as the gold standard method for diagnosing choledochal cysts.
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Description
Explore the Todani classification of choledochal cysts through these flashcards. Each card details a specific type, including Type I, II, and III, highlighting their unique characteristics and definitions. Perfect for medical students and professionals looking to understand this topic better.
