Primary sclerosising cholangitis Flashcards
What is primary sclerotising cholangitis?
Biliary inflammation of unknown aetiology
What is PSC charactersied by?
inflammation and fibrosis of intra and extra hepatic ducts
What is the epid for PSC?
- M>f
2. 20-40s
What are the signs and symptoms of PSC?
- Pruritus
- Cholestatic jaundice
- RUQ pain
- Fatigue
What is the diagnostic feature of PSC?
Diagnostic feature: Beaded appearance of bile ducts on MRCP
“Onion skin fibrosis”
What are associastions with PSC?
UC
What Ix are done for PSC?
- Bloods
- ERCP / MRCP – bead on a string appearance
- Biopsy – “onion skin” fibrosis and obliteration of ducts
What do bloods show in PSC?
pANCA +ve (not specific)
What does ERCP/MRCP show in PSC?
bead on a string appearance - BEST ONE ERCP
What does biopsy show in PSC?
“onion skin” fibrosis and obliteration of ducts
What is the management for PSC?
Screening for risk of cholangiocarcinoma
What is done at diagnosis to screen?
Ca 19-9 and USS / MRCP
How often is the screening for PSC turning into cholagniocarcinoma?
- F/U: LFTs and tumours markers checked every 6months. Imaging every 12 months
- Proceed to ERCP and biopsies of any suspicious lesions
What are possible complications of PSC?
Cirrhosis, cholangiocarcinoma