Actinic Keratosis/Actinic Cheilitis

I'm kind of surprised that none of our doctors have thought that this is Actinic Keratosis, which I believe is known as Actinic Cheilitis when on the lips.

This condition is caused by sun damage, and I hear that the sun damage can be accumulated over years. But the pictures look very similar to our condition and this condition is common on the lips.

I wonder if a biopsy would diagnose this, and perhaps that is the reason why our doctors dont think that this is actinic cheilitis.

Anyways, Imiquimod is a good treatment for this so it would make sense.

Has anyone's doctor mention this as a possibility?

Sun damage could definitely be a possibility for me because I am always outside, and worked outside for the entire summer before I got this.