Metastatic Bone Carcinoma

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Metastatic Bone Carcinoma

Fig. 46.1 Plain radiograph of the proximal humerus. Purely lytic lesion, destroying the cancellous bone. This represents a completely lytic osseous metastasis in women with a follicular carcinoma of the…

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Myeloma

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Myeloma

(1) Department of Pathology and Laboratory Medicine, Hospital for Special Surgery, New York, NY, USA   Abstract Myeloma is a malignant tumor of plasma cell lineage; these cells proliferate and…

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Parosteal Osteosarcoma

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Parosteal Osteosarcoma

Sites of Involvement The vast majority involve the metaphysis of the femur, humerus, or tibia. The most common location is the posterior distal femur. Rare sites included the craniofacial bones,…

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Chondroblastoma

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Chondroblastoma

Sites of Involvement Typically, chondroblastoma occurs in the epiphyses of the long bones. While the occurrence is typically at the end of the major tubular bones, it can also occur…

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“Brown Tumor” of Hyperparathyroidism

Jan 2, 2017 by in ORTHOPEDIC Comments Off on “Brown Tumor” of Hyperparathyroidism

Fig. 59.1 Brown tumor. Well-demarcated lytic lesion involving the proximal tibia Fig. 59.2 (a) Radiolucent lesion seen in the diaphysis of the tibia. (b) CT scan: the lesion erodes the…

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Langerhans Cell Histiocytosis

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Langerhans Cell Histiocytosis

Fig. 58.1 Radiograph of a solitary Langerhans cell histiocytosis (eosinophilic granuloma) in the femoral diaphysis of a young child. Lytic lesion with extensive reactive sclerosis and lamellar periosteal reaction. Radiologic…

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Osteomyelitis

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Osteomyelitis

Fig. 69.1 (a) Acute osteomyelitis. In the earliest phase, there is no change in the bone (left); the MRI panels demonstrating fluid in the marrow taken at the right demonstrate…

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Chondromyxoid Fibroma

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Chondromyxoid Fibroma

Most cases of CMF occur in the metaphysis of tubular bones of the lower extremity. Approximately one-third of the cases are diagnosed around the knee joint, especially the proximal tibial…

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Malignant Fibrous Histiocytoma of Bone

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Malignant Fibrous Histiocytoma of Bone

Metaphysis or diaphysis of long bones, especially around the knee. Femur, tibia, and humerus are, in this order, the more frequent locations. Pelvis, especially the ilium, follows in frequency. About…

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Bizarre Parosteal Osteochondromatous Proliferation

Jan 2, 2017 by in ORTHOPEDIC Comments Off on Bizarre Parosteal Osteochondromatous Proliferation

Fig. 61.1 Bizarre parosteal osteocartilaginous proliferation (BPOP). Radiographic and macroscopic features. (a) Bone and cartilaginous lesion of the metacarpal bone. (b) Well-circumscribed osteocartilaginous nodule Fig. 61.2 Bizarre parosteal osteocartilaginous proliferation….

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