It isn't possible to diagnose from photos. If you are concerned, I'd get a second opinion. They could easily just be hyperpigmentation spots, which are harmless. Basal cell carcinoma rarely invades organs apart from the skin, and even so, it would take a long time, so you're not in urgent need of medical attention, regardless.
These look awfully light to be basal cell, but again, if you're concerned, you should definitely seek a second opinion.