Pilot Study of Secondary Causes of Osteopenia/Osteoporosis in Adults With Breast and Prostate Cancer

The investigators hypothesis is that secondary causes of bone loss are prevalent in patients with breast and prostate cancer, and those patients with secondary causes of bone loss are at higher risk for treatment related bone loss. The goals of this pilot study are to estimate the prevalence of secondary causes of osteoporosis in a cohort of patients with nonmetastatic breast and prostate cancer with osteopenia and osteoporosis.

Inclusion Criteria 1. Diagnosis of nonmetastatic breast cancer or diagnosis of nonmetastatic prostate cancer 2. Measurement of bone mineral density by Dual Energy X-ray Absorptiometry (DEXA) within 6 months of enrollment into study. 3. Patients of all ages are eligible but need to qualify for standard DEXA screening 4. Patients of all performance status are eligible 5. Patients are able to give informed consent Exclusion Criteria 1. Patients previously diagnosed or treated for osteoporosis/osteopenia 2. Stage IV cancer