I'm sure of one thing.

That I’m not quite sure about anything.

Practicing oncology shoves it in my face.

Nothing is textbook.

So many variables when assessing a patient's response to treatment.

Variables that start at the molecular level.

Like EGFR mutation for lung cancer.

Or Her-2 positivity for breast cancer.

These markers change everything.

Sometimes the treatment benefits last for a long time.

Sometimes not as long.

The more I know about the genomics of any cancer, the more I can do.

But also it reminds me of how far we still have to go.

I'm sure of one thing.

We're going.