I would think it's more likely that a histogram of your scene has a long 'tail' of bright shades. This would fool your scanner software into making a very dull, flat rendition in order to capture the whole range of tonal values. It would be simply remedied by adjusting the curve in PS or Aperture or whatever you use for post-processing.

The only satisfactory way to evaluate a negative is with a 5x to 10x hand-lens. If there is detail in both shadow and highlight areas, you have no worries. If it's there it can be printed, and usually scanned. Conversely, just because it isn't there in the scan or print, doesn't mean it isn't there in the negative.