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24 Cards in this Set
- Front
- Back
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Hemangioma - Ultrasound
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Hyperechoic
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Hemangioma - CT
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Non con: hypodense
Arterial: globular discontinous peripheral enhancement Portal venous: Gradual centripetal fill in Delayed: Continued fill in |
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Hemangioma MRI
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T1- low
T2 - "light bulb bright" Arterial: globular discontinous peripheral enhancement Portal venous: Gradual centripetal fill in |
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Focal Nodular hyperplasia- US
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Homogenously isoechoic or slightly hypo/hyper with central scar showing spoke wheel arterial pattern radiating to periphery
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Focal Nodular hyperplasia CT
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Non con: iso/hypdense with hypodense central scar
Arterial: homogenous hypervascular enhancement (central scar is hypodense) PV: homogenous enhancement ( central scar is hypodense) Delayed: Isodense central scar show delayed enhancement |
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Focal Nodular hyperplasia MRI
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T1- isointense with low central scar
T2- isointense with high central scar Arterial: homogenous hypervascular enhancement (central scar is hypodense) PV: homogenous enhancement (central scar is hypodense) Delayed: Isodense central scar show delayed enhancement |
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Adenoma - US
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Solitary well defined hyperechoic mass, may be heterogenous
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Adenoma - CT
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Non con: Hypodense (depends on hemorrhage and necrosis)
Arterial: hypervascular PV: iso to nearly iso Delayed: iso |
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Adenoma- MRI
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T1: high signal (variable depending on hemorrhage and necrosis )
T2: High signal (variable depending on hemorrhage and necrosis ) Arterial: hypervascular PV: iso to nearly iso Delayed: iso |
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Cirrhotic nodules Regenerative US
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Isoechoic
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Cirrhotic nodules regenerative CT
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Non Con: isodense, siderotic may be hyperdense
Arterial phase: isodense PV: isodense Delayed: Ison |
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Cirrhotic Nodules regenerative MRI
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T1: iso intense (siderotic are low signal)
T2: isointense,(siderotic are low) Arterial: Isointense Delayed: isointense |
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Cirrhotic Nodules dysplastic US
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Variable depending on fat
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Cirrhotic nodules dysplastic CT
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Non con: iso/hyperdense
Arterial: Iso PV: iso Delayed: iso |
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Cirrhotic nodules dysplastic MRI
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T1: High signal
T2: low signal Arterial: Iso PV: iso Delayed: iso |
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HCC- US
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Variable, <3cm have hypoechoic rim with hyperechoic center while >3 cm are heterogenous
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HCC CT
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Non con: isodense to hypodense
Arterial phase: Heomgenously hypervascular (smaller) larger lesions may show hetergenoud enhancment PV: hypodense (washout fast) Delayed: Isodense |
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HCC MRI
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T1: 50% high, 50% variable
T2: High signal, capsule is low hypervascular (smaller) larger lesions may show hetergenoud enhancment PV: hypodense (washout fast) Delayed: Isodense, capsule may show delayed enhancement |
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Fibrolamellar HCC US
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Variable to hyperechoic to heterogenous, central scar may calcify
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Fibrolamellar HCC CT
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Non con: heterogenous with hypodense cetnral scar
Arterial: Heterogenous, central scar is hypodense PV: iso to hypo Delayed: Iso, central scar in non enhanceing |
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Fibrolamellar HCC MRI
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T1: low
T2: High, central scar is low Arterial: heterogenous enhancement Delyed: heterogenous enhancment |
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Cholangiocarcinoma US
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Peripheral hypoechoic surrnding biles ducts
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Cholangiocarcinoma CT
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Non cont: Hypo/iso dense
arterial: Iso PV: mild peripheral enhancment delayed: increasing enhancement |
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Cholangiocarcimona MRI
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T1: low
T2 bright arterial: mild to moderate peripheral enhancement PV: progressive centripetal enhancement |
