64 year-old male with no past medical history presents complaining of chronic weight-loss and diffuse chest pain; CXR is shown. What's the diagnosis and what other disease(s) may present similarly?

Sclerotic bone (osteoblastic) metastasis secondary to prostate cancer. The patient's CXR from 2 years prior is shown below for comparison.

Other malignancies associated with osteoblastic metastasis: