These pseudolaminae have straight and uniform peripheral bone with smooth corticated surfaces expected in congenital development and no evidence of bone sclerosis
(or irregular formation typically observed in cases of pseudoarthrosis).
We also observed the following changes: (i) deformation of the mandibular condyle and articular tubercle; (ii) bone sclerosis
; (iii) altered dimensions in the condyle (vertical or lateromedial); (iv) cortical erosion; (v) presence of osteophytes; (vi) presence of subchondral cyst, (vii) signs compatible with OA.
It is characterized by progressive loss of articular cartilage(1) with subchondral bone sclerosis
, osteophyte formation, inflammation of synovial membrane, and an increase in the synovial fluid with decreased viscosity and lubrication properties.
Total knee replacement (TKR) is most commonly caused by osteoarthritis of the knee, and can result in loss of articular cartilage, subchondral bone sclerosis
, bone spurs and degenerative subchondral cysts.
The nidus is located in the center of the thickening and is always surrounded by the reactive bone sclerosis
. Hence, in almost all cases, it is only visible via a CT scan.
It is able to depict joint space narrowing, marginal osteophytes, subchondral bone sclerosis
, cyst and deformity, caused by the disease.
(6) Brodie's abscesses are typically elongated in the long axis of the bone and are most commonly seen in the metaphysis of the proximal or distal tibia, characteristically surrounded by dense reactive bone sclerosis
. (1,2,6) The presence of a tortuous, linear channel connecting the lytic metaphyseal lesion to the physeal plate is pathognomonic of a Brodie's abscess.
Rugger jersey spine, cranio-facial bony hypertrophy with leonine facies 3.
Classic radiographic features "are focal joint space narrowing, osteophyte, subchondral bone sclerosis
, and subchondral cysts."