Bones, Joints, Muscles and Connective Tissue Diseases

Reactive Arthritis (ReA) or Reiter Syndrome

What is reactive arthritis? Reactive arthritis is a condition of the joints that arises with gastrointestinal or genitourinary infections. It may also involve the skin and eyes. These manifestations at the joint, skin or eyes are not due an infection at these sites. Instead it is an immune response associated with an >> Read More ...

Osteopetrosis (Stone Bones, Marble Bone Disease)

Definition Osteopetrosis is a group of disorders where bone resorption is impaired and the bones become denser than normal but are prone to fractures. It is also known as stone bone, marble bone disease and Albers-Schonberg disease. It should not be confused with osteoporosis, a more common condition where there is loss of >> Read More ...

Discitis (Spinal Disc Infection)

Definition Discitis, also spelled as diskitis, is a condition where the spaces between the spinal bones (vertebrae) becomes irritated and inflamed. There are spongy discs known as the intervertebral (IV) discs in the space between the vertebrae which assist with spinal flexibility and firmness and acts as a shock absorber. >> Read More ...

Hip Osteonecrosis (Femoral Head Bone Death)

Definition Hip osteonecrosis  is a condition where there is death of the bone that comprises the hip joint. The injury and subsequent death of bone tissue is due to a disruption in the blood supply to the bone. Therefore it is also known as avascular necrosis of the hip. Since the bone death is not due to an infection, >> Read More ...

Calcific Tendonitis (Rotator Cuff Tendons of the Shoulder)

What is calcific tendonitis? Calcific tendonitis, or calcifying tendonitis, is a condition where calcium deposits form in the tendons of the rotator cuff muscles. These muscles are commonly referred to as the shoulder muscles. Calcific tendonitis can affect any tendon in the body but it is the rotator cuff tendons that are >> Read More ...

Pseudogout and Calcium Pyrophosphate Deposition Disease

What is pseudogout? Pseudogout is a joint condition where calcium pyrophosphate dihydrate crystals are deposited in and around the joints. It is known as pseudogout because it is similar to the more common crystal-induced arthritis known as gout, where urate crystals accumulate in the joints. Comparatively, pseudogout is >> Read More ...

Gonococcal Arthritis (Joints Infected by Gonorrhea Bacteria)

What is gonococcal arthritis? Gonococcal arthritis is an infection and inflammation of the joints caused by the gonorrhea bacteria. Arthritis is the medical term for joint inflammation. There are several different types of arthritis that can affect humans. By far the two most common types of arthritis arise with joint >> Read More ...

Knee Osteonecrosis (Bone Death)

What is knee osteonecrosis? Knee osteonecrosis (osteo = bone, necrosis = death) refers to the condition, in which knee pain results from death of a segment of bone. In knee osteonecrosis, the otherwise normal bone circulation in the knee region is impaired the diminished blood supply causes the bone tissue to die. The >> Read More ...

Piriformis Syndrome

What is piriformis syndrome? Piriformis syndrome is a rare condition characterized by pain, instability, tingling and numbness in the lower back, buttocks, lower thighs and the calves. It arises due to the irritation or compression of the sciatic nerve by the piriformis muscle during running or sitting. The longest and >> Read More ...

Osteoma Cutis (Bone Growth in the Skin)

What is osteoma cutis? Osteoma cutis refers to the presence of bone within the skin. It is considered to be a type of cutaneous ossification, which means formation of bone tissue in the skin. However, osteoma cutis can easily be differentiated from other types of cutaneous ossification. Sometimes calcium deposits within >> Read More ...
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