a benign lesion of cortical bone tumor. It has a center of growing cells, called a nidus, surrounded by a hard shell of thickened bone. No one knows why these tumors form. They do not spread throughout the rest of the body.
A chronic condition of bone characterized by disorder of the normal bone remodeling process. Normal bone has a balance of forces that act to lay down new bone and take up old bone. This relationship (referred to as “bone remodeling”) is essential for maintaining the normal calcium levels in our blood. In bone affected by Paget’s disease, the bone remodeling is disturbed and not synchronized. As a result, the bone that is formed is abnormal, enlarged, not as dense, brittle, and prone to breakage .
Osteopetrosis, literally “stone bone”, also known as marble bone disease and Albers-Schonberg disease is an extremely rare inherited disorder whereby the bones harden, becoming denser, in contrast to more prevalent conditions like osteoporosis, in which the bones become less dense and more brittle, or osteomalacia, in which the bones soften. Osteopetrosis can cause bones to dissolve and break. Read the rest of this entry »
Osgood-Schlatter disease is one of the most common causes of knee pain in young athletes. It causes swelling, pain and tenderness just below the knee, over the shin bone (also called the tibia). Osgood-Schlatter commonly affects boys who are having a growth spurt during their pre-teen or teenage years. One or both knees may be affected.
A Jones fracture is an injury to the fifth metatarsal bone of the foot. The fifth metatarsal bone is at the base of the small toe, and the Jones fracture occurs in the midfoot area (the top of the bone).