You could try copying a patch with any selection tool and feather the selection from the adjoining area of either side so it looks more natural and then mask out with a soft brush to bring back the hair line. The shadow is running down the entire length of her body and appears to be coming from above. Otherwise, it is a nice shot.
Thanks for the suggestions; I tried both the healing brush and patch tool with not such good results. I couldnt get the healing brush to give me the right tone even though I was using a sample area just above the dark shadow. The Patch tool was the same thing with the addition of not getting a nice blend with the surroundung texture. I'll keep plugging away and let you know how I do.
