Shoulder and arm pain

Patient: I have x-ray and ultrasound findings indicating lucency in the upper humeral cortex with possible periosteal thickening, raising the possibility of a Broodie’s abscess or osteoid osteoma. I am now waiting to see a rheumatologist but not until August. My concern is that I have yet to get an MRI, and nothing is confirmed yet- so it would be nice to know if I should be concerned about the wait time… or believe that this is not a serious matter. I would like to know that is not cancer