Tumor invasion and metastasis: are they the same thing?

Here are a couple great questions from one of my lovely students regarding invasiveness and metastasis.

Q. I have a quick question on today’s lecture. There is a slide near the end that has a picture of non-invasive carcinoma. For a tumor to be malignant, should it not be invasive? (more…)

Can you solve this case?

From time to time I like to present little cases as unknowns…kind of like you’d see if you were a medical student or resident rotating through surgical pathology. (more…)