For bone scanning, common indications include the following: Bone pain Elevated serum alkaline phosphatase Stage III or IV cancer Abdominal CT is done if patients have any of the following: Abnormal liver test results Abnormal abdominal or pelvic examination Stage III or IV cancer Chest CT is done if patients have either of the following: Pulmonary symptoms such as shortness of breath Stage III or IV cancer MRI is often used by surgeons for preoperative planning; it can accurately determine tumor size, chest wall involvement, and number of tumors.