Genetic link between Fibrous Dysplasia and Intramuscular Myxoma in patients suffering from Mazabraud syndrome

This genetic study is investigating whether fibrous dysplasia of bone and intramuscular myxoma (benign tumours in muscle) share the same underlying genetic cause in patients with Mazabraud syndrome — a very rare condition where both occur together. Understanding this link could lead to better management and monitoring for patients at increased risk of serious bone cancers. You may be eligible if: - You have been confirmed to have both intramuscular myxoma and fibrous dysplasia of bone (i.e., Mazabraud syndrome) - You are willing to provide a blood sample for genetic testing You may NOT be eligible if: - You have not been diagnosed with both conditions (only patients with confirmed Mazabraud syndrome are eligible) Talk to your doctor about whether this trial might be right for you.