stressed about this little red lesion on my leg

[stressedaboutskin]

For some background, I am a 34 yr old female with fair skin and blue eyes.  I have lots of freckles and several atypical moles (I have a few moles on my back that are over 5mm easily).  Because of my many moles, I have always been very diligent with checking my skin for melanoma signs.  I have had a couple of bad sunburns in my life, but I was never a sunworshiper by any means.  4 years ago I had 2 moles removed and biopsied by a dermatologist because my family doctor had been concerned about their size and shape.  They were both benign (thank god) but I can say that the wait to find out was the most stressful experience of my life.  I was literally ill to my stomach every day.  
During my 2nd pregnancy 3 years ago, I noticed a red bump start to form on my leg.  I have had several dermatofibroma's on my legs over the past 10 years, so I didn't think anything of it and just assumed it was yet another dermatofibroma.  I didn't think anything of it until recently when I read an article on Amelanotic Melanoma's and it said that they could be mistaken for a dermatofibroma. I went to my family physician and he looked at it quickly and passed it off as possibly a small keloid or a dermatofibroma, but I insisted that he refer me to a dermatologist anyhow.  The bump is reddish (not deep red though), blanches a bit with pressure, only slightly raised (just barely), very smooth and a bit pearly, and has been roughly the same size for well over a year (maybe even 2 years). It is about 5mm.  When you put pressure on it and the reddish color blanches, you can just barely see very faint flecks of tan pigment. I have read that keloid's are more common in darker skin and tend to be very itchy (which it is not), and the bump does not dimple when pinched like all of my other dermatofibroma's did, so now I am freaked out with worry.   .
Do dermatofibroma's ALWAYS dimple when pinched?  Could it be some kind of other benign scar or growth from a previous injury or bug bite?  I go to see a dermatologist in 3 weeks, and I am worried that they too will just pass it off as a dermatofibroma and not want to remove it..........should I insist a biopsy?  I would hate to have yet another ugly scar if it is unnecessary, but at the same time, I am a mom of 2 young children, and I don't want to take any chances with my health.  

[suntower]

Yes, like Pum sais, I think the important thing is that it hasn't grown a whole lot, and what you're worried about is pretty rare. Keep that in mind when you're worrying. I worry a LOT, and it's just gotten worse since I had kids, and I feel miserable waiting for biopsy results. But chances are it's nothing serious. I know that once you've got a scary disease in your mind it seems like all symptoms match perfectly and you focus exclusively on that frightening possibility, but from an objective outside viewpoint, there are a whole LOT of benign skin conditions that this is MUCH more likely to be.

[Pum]

Amelanotic melanomas are pretty rare and they grown quickly. Yours hasn't grown so that's a good sign. Good luck with your appointment.