Có nhiều điều kiện sản xuất một tổn thương radiolucent trong xương. Nhiều người trong số này là lành tính và quan trọng gì và chỉ cần quan sát thường xuyên, vì họ thường chữa lành một cách tự nhiên. Một số là lành tính nhưng không chữa lành một cách tự nhiên và yêu cầu một hoạt động hạn chế. | Radiolucent Lesions of the Extremities Dempsey S. Springfield MD Abstract There are numerous conditions that produce a radiolucent lesion in a bone. Many of these are benign and of little consequence and need only occasional observation as they usually heal spontaneously. A few are benign but do not heal spontaneously and require a limited operation. Others are malignant and must be removed surgically or irradiated. The physician evaluating the radiolucent lesion must be able to distinguish lesions that should be observed from those that should be further evaluated or treated. It is unnecessary to evaluate every radiolucent lesion as if it were a malignant tumor. With an understanding of the potential lesions and how they present it is possible to construct an algorithm that can be used to organize an efficient and appropriate evaluation. J Am Acad Orthop Surg 1994 2 306-316 The term cystic lesion is often used to describe an abnormality in bone. Usually what is meant is that the abnormality looks like a void in the bone because there is no intrale-sional calcification or ossification and the matrix if there is one cannot be seen on the radiograph. Only rarely are cystic lesions actually true cysts. The use of the term cystic can lead to misunderstanding because orthopaedists think it refers to a fluid-filled cavity. To avoid this misunderstanding it is best to use the term cyst only for lesions that are fluid-filled cavities. Unicameral bone cysts aneurysmal bone cysts and intraosseous ganglions are the common true cystic lesions of bone. Other radiolucent lesions should not be called cystic. When the specific diagnosis is not known it is better to refer to cystic-appearing lesions as radiolucent or osteolytic. However even the term osteolytic can be confusing because it suggests that there is active lysis of bone when in fact many radiolucent lesions are the result of failure of bone formation . unicameral bone cysts and enchondromas not the result of bone .
