Hi, @azkidney57. I googled the term "lucent lesion" and found an expert response that listed 11 possible lesions that range widely across the possibilities. You can view that response at https://www.health24.com/Medical/Cancer/Experts/Question/What-does-lucent-lesions-mean-20160219. Note that the response closes with a strong recommendation that you confer with your primary physician as to which of the possibilities is most likely in your case so that, if needed, treatment can begin.