PTH and fibroepithelial polyp: In summary we identified: (a) a statistically significant increase in soft tissue lesions (histologically confirmed as fibroepithelial polyps) in aged Sml and Oed mice; (b) a statistically significant increase in both the number and cumulative area of radio-opacities in aged Oed and Sml male and female mice; and (c) highly elevated PTH levels in both younger and older Oed mice and moderately elevated PTH levels in older Sml mice.