Benign Tumors and Tumor-like Lesions III: Fibrous, Fibroosseus, and Fibrohistiocytic Lesions Fibrous Cortical Defect and Nonossifying Fibroma Fibrous cortical defects and nonossifying (nonosteogenic) fibromas are the most common fibrous lesions…
Osteoporosis, Rickets, and Osteomalacia Osteoporosis Osteoporosis is a generalized metabolic bone disease characterized by insufficient formation or increased resorption of bone matrix that results in decreased bone mass and microarchitectural…
Degenerative Joint Disease Osteoarthritis Degenerative joint disease (osteoarthritis, osteoarthrosis) is the most common form of arthritis. In its primary (idiopathic) form, it affects individuals aged 50 and older; in its…
Radiologic Evaluation of Musculoskeletal Infections Musculoskeletal Infections Infections of the musculoskeletal system can be subdivided into three categories: (a) those involving bones (osteomyelitis), (b) those involving joints (infectious arthritis), and…
Osteomyelitis, Infectious Arthritis, and Soft-Tissue Infections Osteomyelitis Osteomyelitis can generally be divided into pyogenic and nonpyogenic types. The former may be further classified, on the basis of clinical findings, as…
Radiologic Evaluation of Metabolic and Endocrine Disorders Composition and Production of Bone Bone tissue consists of two types of material: (a) an extracellular material, which includes organic matrix or osteoid…
Radiologic Evaluation of Trauma Radiologic Imaging Modalities The radiologic modalities used in analyzing an injury to the musculoskeletal system are as follows: Conventional radiography, including routine views (specific for various…
Radiologic Evaluation of the Arthritides In its general meaning, the term arthritis indicates an abnormality of the joint as the result of a degenerative, inflammatory, infectious, or metabolic process (Fig….
Hyperparathyroidism Pathophysiology Hyperparathyroidism, also known as generalized osteitis fibrosa cystica or Recklinghausen disease of bone, is the result of overactivity of the parathormone-producing parathyroid glands. Increased production of this hormone…
Benign Tumors and Tumor-like Lesions I: Bone-Forming Lesions Benign Bone-Forming (Osteoblastic) Lesions Bone-forming neoplasms are characterized by the formation of osteoid or mature bone directly by the tumor cells. They…
