Solitary Osteochondroma
Localization: The most frequent localization is in the long bones: distal femur, proximal humerus, and proximal tibia. It originates from the metaphysis, but, with skeletal growth, it tends to move…
Chondroma (Enchondroma)
Localization: Chondroma occurs only in bones that are preformed in cartilage. Most cases are observed in tubular bones of the hand. Enchondroma is the most common bone tumor of the…
Mesenchymal Chondrosarcoma
Location: Trunk and craniofacial bones. Rare in the limbs. Clinical: Pain and swelling. Imaging: On x-ray – osteolytic lesion with permeative destruction of bone, ill-defined margins, breaking the cortex, with…
Clear Cell Chondrosarcoma
Location: Epiphysis or apophysis of long bones (proximal femur and humerus), flat, and short bones. Clinical: Modest pain. Imaging: On x-ray, like a chondroblastoma. Osteolytic lesion with small calcifications, sharp…
Secondary Osteosarcoma
Radiograph at onset and two months later, bone scintigraphy. Lytic heterogeneous broken lesion involving the epiphysis and metaphysis. The thick lamellar cortex indicates a preexisting Paget disease, confirmed by widespread…
Osteoblastoma
Localization: Osteoblastoma shows evident predilection for the vertebral column (posterior arch) and the sacrum, but it may occur in any skeletal site. Clinical: In the spine, it presents symptoms similar…
Chemotherapy in Ewing Sarcoma
Piero Picci, Marco Manfrini, Nicola Fabbri, Marco Gambarotti and Daniel Vanel (eds.)Atlas of Musculoskeletal Tumors and Tumorlike Lesions2014The Rizzoli Case Archive10.1007/978-3-319-01748-8_49 © Springer International Publishing Switzerland 2014 49. Chemotherapy in Ewing Sarcoma Stefano Ferrari1 (1) Chemotherapy Ward of Musculoskeletal…
Biology of Ewing Sarcoma
Piero Picci, Marco Manfrini, Nicola Fabbri, Marco Gambarotti and Daniel Vanel (eds.)Atlas of Musculoskeletal Tumors and Tumorlike Lesions2014The Rizzoli Case Archive10.1007/978-3-319-01748-8_48 © Springer International Publishing Switzerland 2014 48. Biology of Ewing Sarcoma Katia Scotlandi1 (1) Laboratory of Experimental Oncology,…
Chondroblastoma
Location: Usually at the end of long bones (femur, tibia, humerus), involving the epiphysis, both the epiphysis and the metaphysis, or, less frequently, an apophysis. Exceptionally, it can be purely…
Desmoid Fibroma
Localization: Desmoid fibroma is more frequent in the mandible, long bones, and pelvis. In the long bones, it is more often observed in the meta-diaphysis, but it may be diaphyseal….
