Liver Tumors - Video Lesson

Hey, everybody. Welcome back to your favorite pathology tutorial. In this video, we'll be talking about liver tumors. There's basic three kinds of liver tumors that we can identify in sectional imaging. Primary liver cancer, metastatic liver cancer and Hemangiomas, which are not cancer. These tumors can look similar in some ways, but there's one important way that we can distinguish between these tumors. Primary cancer is a cancer that only enhances during the arterial phase of contrast enhancement. This is different from metastatic cancer. Medistatic cancer, as you can see, usually appears in multiples. There's not just one lesion, and it enhances during the Venus phase of contrast enhancement. And finally, Hemangiomas are different than both of these. They may appear singularly. They may appear in multiples. They are not cancer, which means they don't have the ability to spread to other parts of the body. Hemangiomas do not enhance with contrast until well after they are