How to distinguish between benign and malignant bone cysts

Bone cyst is a tumor-like lesion of bone, also known as isolated bone cyst. The cyst wall is a fibrous capsule, and the cyst is yellow or brown liquid. How to distinguish whether bone cyst is benign or malignant? Bone cyst is a benign lesion, and it is worth noting that osteosarcoma and metastatic tumor are similar diseases. Patients with such diseases cannot be distinguished by naked eyes. They need to go to the hospital for professional help.