Question:

Choose the most common enhancement pattern of intrahepatic HCC on CT:
1. No enhancement.
2. Early greater than late enhancement.
3. Late greater than early enhancement.
4. Persistent strong enhancement which is similar on early and delayed phase scans.
5. Progressive centripetal enhancement to uniform filling.





Answer:

The correct answer for the question "Choose the most common enhancement pattern of intrahepatic HCC on CT:" is:

2. Early greater than late enhancement.



Explanation
"Seeding metastases demonstrate similar enhancement characteristics, appearance, and doubling time as intrahepatic HCC[2], which typically demonstrates strong arterial phase enhancement with "washout" on venous and delayed phases."



From the manuscript:
Seeding of the Rectus Sheath with Hepatocellular Carcinoma after Image Guided Percutaneous Liver Biopsy Using Coaxial Biopsy Needle System
Radiology Case. 2015 Jan; 9(1):18-25


This article belongs to the Interventional section.




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From the manuscript

Seeding of the Rectus Sheath with Hepatocellular Carcinoma after Image Guided Percutaneous Liver Biopsy Using Coaxial Biopsy Needle System

Free full text article: Seeding of the Rectus Sheath with Hepatocellular Carcinoma after Image Guided Percutaneous Liver Biopsy Using Coaxial Biopsy Needle System

Abstract
Needle track seeding following image guided needle biopsy is a known but uncommon complication in the workup of hepatocellular carcinoma. We present the case of a 55 year-old male who was found to have a recurrent hepatocellular carcinoma in the rectus sheath five years following a CT guided biopsy with the biopsy needle passing through the anterior abdominal wall muscles.






References



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1. Liver

2. hepatic

3. mass

4. percutaneous

5. biopsy

6. coaxial

7. needle

8. tract

9. seeding

10. hepatocellular

11. carcinoma

12. metastatic disease

13. transplant


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