The word for today is...
Also called neurilemoma, is a benign tumor that can arise from any nerve in the body, although it tends to favor certain nerves located in the head and neck along with nerves that are involved with flexing in the upper and lower extremities. ...
This is what the doc surgically removed from my middle finger on my left hand two weeks ago. Benign.. it's a tumor of sorts where the nerve sheath grows unchecked. Was about the size of the head of a Q-Tip, on the left side of the finger, near the nail. Had it for about 10 years, finally got annoyed enough to do something about it. Finger is almost back to normal, stitches out today, prognosis excellent! The tumor is below the skin, but goes all the way to the bone. Hard to see in these photos, just more of a swollen area under the skin.
But wait.. there's more!
The Schwann cell was named after the German physiologist Theodor Schwann. Schwann cells (also referred to as neurolemmocytes) are a variety of glial cell that mainly provide myelin insulation to axons in the peripheral nervous system (PNS) of jawed vertebrates.
You're thinking, "Dude, that's no improvement, it looks worse?" Thats pretty much the left over scar tissue. In another month or so, that will subside and be back to the same level as the rest of the skin. Nothing alarming really, other than it 'could' potentially grow back.