Brown splotch on skin, melasma or melanoma?

I recently went to a dermatologist and had an abnormal mole removed. I am waiting on the results. In the mean time I've been examining my skin for any other abnormalities or recent changes. This brown splotch on my skin has me perplexed. Could it be skin cancer or just a simple sun spot? It just appeared a couple months ago and recently another spot has appeared like it. It is on my hip, where there is normally no sun exposure. There is melanoma in my family history. I plan on asking my doctor, but in the mean time I'd like some advice. Thanks! Here is a photo: http://tinypic.com/r/2dlm9ns/5 This photo is non graphic!