<unk> , or osseous metastatic disease, is a category of cancer<unk>  that results from primary tumor invasion to<unk> .<unk> -originating primary tumors such as osteosarcoma, chondrosarcoma, and Ewing's sarcoma are rare.<unk>  can be classified as osteolytic, osteoblastic, or both. Unlike hematological malignancies that originate in the blood and form non-solid tumors,<unk>  generally arise from epithelial tumors and form a solid mass inside the<unk> .<unk>  cause severe pain, characterized by a dull, constant ache with periodic spikes of incident pain.
Bone metastasis
Bone tumor
Bone sarcoma
Osteomyelitis
Osteoma
Osteopetrosis
Bone cyst
Tumoral calcinosis