When doctors access osteoarthritis and osteoporosis, they will also consider Osteogenic sarcoma, or Osteosarcoma. The symptoms are amazingly similar in comparison, yet different in several ways. For instance, if osteoporosis is present the patient will experience joint and back pain, fatigue, and so on. Likewise, if Osteogenic sarcoma is present the patient may feel pain, limited range of motion (ROM), immobility, and so on.