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Secondary bone marrow edema is caused by pre-existing conditions, which may be interdisciplinary. Hence, this category of BME is commonly found in MRIs, in which the original intention was not to diagnose this particular condition. The different causes of secondary bone marrow edema are listed as follows: [2]
Medical condition Osteochondritis dissecans A large flap lesion in the femur head typical of late stage Osteochondritis dissecans. In this case, the lesion was caused by avascular necrosis of the bone just under the cartilage. Pronunciation / ˌ ɒ s t i. oʊ k ɒ n ˈ d r aɪ t ɪ s ˈ d ɪ s ɪ k æ n z / Specialty Orthopedic surgery Osteochondritis dissecans (OCD or OD) is a joint disorder ...
Sagittal magnetic resonance images of ankle region: psoriatic arthritis. (a) Short tau inversion recovery (STIR) image, showing high signal intensity at the Achilles tendon insertion (enthesitis, thick arrow) and in the synovium of the ankle joint (synovitis, long thin arrow). Bone marrow oedema is seen at the tendon insertion (short thin arrow ...
Sacroiliitis on imaging — When sacroiliitis is diagnosed in those with structural alterations on plain radiographs or subchondral bone marrow edema (BME) on MRI, at least one additional sign of spondyloarthritis from the list below should be present. [6] Spondyloarthritis features:
When the damage increases and the chondral defect reaches the subchondral bone, the blood supply in the bone starts a healing process in the defect. Scar tissue made up of a type of cartilage called fibrocartilage is then formed. Although fibrocartilage is able to fill in articular cartilage defects, its structure is significantly different ...
They appear as crescentic oblique lines surrounded by a bone marrow edema pattern (Figure 5). The rotator cuff must be inspected since associated ligamentous lesions are common. In the ankle, malleoli and tarsal bones should be checked carefully for any cortical disruptions and radiolucent lines that may reveal a fracture.
The most commonly affected bone is the femur (thigh bone). [1] Other relatively common sites include the upper arm bone, knee, shoulder, and ankle. [1] Diagnosis is typically by medical imaging such as X-ray, CT scan, or MRI. [1] Rarely biopsy may be used. [1] Treatments may include medication, not walking on the affected leg, stretching, and ...
New bone outgrowths, called "spurs" or osteophytes, can form on the margins of the joints, possibly in an attempt to improve the congruence of the articular cartilage surfaces in the absence of the menisci. The subchondral bone volume increases and becomes less mineralized (hypo mineralization). [47] All these changes can cause problems ...