Dermatafibroma?

My derm diagnosed a spot on my leg as a dermatafibroma quickly without a biopsy. Is clinical observation pretty accurate without biopsy? Also-I have a...

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Dermatologist Froze Red Itchy Spot. Is It Too Late to Biopsy?

I had a red, inflammed itchy raised spot on my collarbone. It appeared all of a sudden and was there for a month. It itched so bad. My dermatologist...