To review and discuss clinical cases regarding different types of cartilage tumors. To illustrate the radiological features of this different tumors, using x-ray, computer tomography and magnetic resonance images.

Cartilage tumors are one of the most common primary tumors of the bone and are a vast clinical entity that ranges from benign to malign lesions. This tumors are classified according to their anatomical location, radiographic, histologic and clinicopathological features. The major categories are osteochondroma, enchondroma, chondroblastoma, chondromyxoid fibroma and chondrosarcoma. Often radiological images are sufficiently specific of these tumors to determine its type, but sometimes, due to the overlapping characteristics, differentiation between benign or malignant lesions are very difficult. Diagnosis is based mainly on...

Osteochondroma Osteochondromas are the most common benign bone neoplasms. They are usually diagnosed in the early adulthood. They are mainly asymptomatic, but sometimes may present with osseous deformation, fractures, bursitis and neurovascular compromise. Osteochondromas are typically located on metaphyseal regions of long tubular bones, scapula or ilium. Osteochondromas can be pedunculated or sessile bone protrusions with continuity to the bone and a cartilage cap adjacent to it, which is variable in appearance. Osteochondromas presents on plain radiography and on CT as a well-circumscribed protuberance with...

For the radiologist, the knowledge of the radiological aspect of these tumors is of crucial importance, as well as the signs that suggest a benign or malignant etiology. Proper and timely diagnosis ofcartilage tumorscan improve the staging accuracy and will allow better management of the disease.

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Lead author: José Rosa Radiology Resident at Centro Hospitalar Universitário Lisboa Norte - Hospital de Santa Maria, Avenida Professor Egas Moniz 1649-035 Lisboa, Portugal. [email protected]