Pyogenic granuloma or nodular melanoma??

Hi all! I'm new here and wanted to get your opinion(s) on this growth that started on my thumb only two weeks ago. It has grown fast! It is also very painful. It started with me noticing that my thumb was lifting from beneath my cuticle and within a day this growth appeared. I was referred to a hand surgeon and will be having the growth removed and biopsied this coming Thursday. The surgeon initially thought it might be a pyogenic granuloma and attempted to burn the growth with silver nitrate...absolutely nothing happened and the surgeon's demeanor completely changed. He muttered to himself..."hm, it looks benign....at least to me..." And then looked at me and said he will scheduled to have it surgically removed and biopsied. I am trying not to worry, but Thursday feels very far away and it is hard to think about this.

Has anyone on here had something similar? What did it turn out to be?

Also, no injury was present that I'm aware if before this started. I did push my cuticles back a few days before, but there were no cuts or other legions present. No pain or anything until the tumor started growing after the nail has begun lifting at the cuticle. The growth does not bleed, but tiny amounts of blood and pus do seep from beneath the growth from surrounding tissues. The surrounding tissue has become infected (red, inflamed, mild bleeding and pus) but the growth itself isn't oozing or bleeding.

The image below is what it looks like today. I will upload another image to show what it looked like a week after it started. There is a HUGE difference! 🙁