student syb chet cunha ms iv january 22, 2009. history 61 y/o m with known hcv x 5 yrs. presenting...
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![Page 1: Student SYB Chet Cunha MS IV January 22, 2009. History 61 y/o M with known HCV x 5 yrs. presenting with vague abdominal discomfort. Outside CT showed](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697c02d1a28abf838cd9e09/html5/thumbnails/1.jpg)
Student SYB
Chet Cunha MS IVJanuary 22, 2009
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History•61 y/o M with known HCV x 5 yrs.
presenting with vague abdominal discomfort.
•Outside CT showed single suspicious lesion in liver.
•US guided bx shows mild chronic hepatitis with no evidence of malignancy or cirrhosis.
•PE and ROS unremarkable.
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DDxHepatic mass lesions
• Malignancy - HCC, lymphoma, hemangiosarcoma, intrahepatic cholangiocarcinoma, mets (GI, GU, ovarian, pancreatic)
• Benign tumors - hemangioma, adenoma
• Cysts - hepatic cysts, hydatid cysts, polycystic liver disease
• Abscesses - pyogenic, amebic, fungal
• Focal fatty infiltration
• Caroli’s disease
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Labs
•CBC/BMP unremarkable.
•No LFT abnormalities.
•Elevated Alpha-fetoprotein.
•HAV/HBV serologies negative.
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W/U of hepatic lesion
•CT with contrast
•MRI
•US
•Tc-99m
•Lipiodol Angiography with CT f/u
•US, CT guided, or open bx for definitive dx
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Imaging - Lipiodol Angiogram
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Imaging - Lipiodol Angiogram
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Imaging - Triphasic CT 2 weeks after
Angiography
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Imaging - Triphasic CT 2 weeks after
Angiography
![Page 10: Student SYB Chet Cunha MS IV January 22, 2009. History 61 y/o M with known HCV x 5 yrs. presenting with vague abdominal discomfort. Outside CT showed](https://reader036.vdocuments.mx/reader036/viewer/2022062519/5697c02d1a28abf838cd9e09/html5/thumbnails/10.jpg)
Imaging - Triphasic CT 2 weeks after
Angiography
Periportal lymphadenopathy
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Imaging - Triphasic CT 2 weeks after
Angiography
Smaller middle lobebut no frank evidence of
cirrhosis
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HCC•Most often seen in presence of
cirrhosis (EtOH, HBV, HCV, hemochromatosis, aflatoxin, alpha 1 antitrypsin)
•AFP often, but not always elevated
•3 growth patterns:• Solitary mass (often large)
• Multifocal/nodular
• Diffuse
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HCC Radiographically
•US appearance variable
•MR - hypo in T1, hyper in T2
•Unenhanced CT - hypoattenuated lesions
•CT with contrast - hyper in arterial phase
•Often invades portal vasculature
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HCC - Treatment Options
•Surgical resection
•Chemoembolization
•Radiofrequency ablation
•Chemotherapy
•Liver transplantation (If pt has 1 lesion <5cm or 3 lesions <3cm*)
*N.B. these measurements can be reevaluated following neoadjuvant therapy
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Further Reading
• Gourtsoyiannis, N.C., Ros, P.R. Radiologic-Pathologic Correlations from Head to Toe. Springer Publishing, Berlin 2005.
• Grossman, Z.D., Katz, D. S., et al. Cost-Effective Diagnostic Imaging. Mosby Elsevier, Philadelphia, 2006.
• Weinstein, W.M., Hawkey, C.J., Bosch, J. Clinical Gastroenterology and Hepatology. Mosby Elsevier, Philadelphia, 2005.