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3 Cards in this Set
- Front
- Back
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Primary sclerosing cholangitis.
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-Dilatation of intra and extrahepatic ducts.
-Multifocal irregular strictures that alternate with normal ducts, giving a "beaded" appearance. -"pruning"of peripheral ducts - Isolated Peripheral ducts have no visible connection to the central ducts -periportal and portocaval lymph nodes common and reactive. - complicating cholangiocarcinoma difficult to diagnose when early. |
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Adenomyomatosis
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- Overgrowth of gallbladder mucosa
-hypertrophy of the muscular layer. -extension of mucosa into the thickened gallbladder wall forming intraumural diverticula (RA sinus) - Rokitansky-Aschoff sinuses: Diverticula in gallbladder wall. Isointense to bile on T2 and MRCP. No enhancement. -Thickened gallbladder wall: low signal on T2. Variable enhancement. |
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Serous cystadenoma of the pancreas
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-older females
-slight predominance in pancreatic head. -multiple cysts (> 6) most are < 2 cm. multiple thin septa. -Serous cysts follow fluid SI and do not enhance. Septa and central scar do enhance. Can contain central calcification (better revealed by CT) |
