(a)-(d): The bone marrow biopsy shows mild hypercellularity (a, H&E 200×) and mild to moderate fibrosis (b, Reticulin stain, 200×). CD79a (c, 200×) and CD3 (d, 200×) immunostains highlight lymphoid ...

Heterotopic ossification happens when bone grows outside of its normal location and into the surrounding soft tissues of your body. When this happens, the pieces of bone that develop are called ...

Pelvic bone cancer is a rare form of cancer. Primary bone cancers that start in the bones are uncommon. Usually, when someone has bone cancer, it begins elsewhere and then spreads to the bones.