1/15. Synovial chondromatosis of the subcoracoid bursa.Synovial chondromatosis, is the chondroid metaplasia of the synovial membrane. Large joints such as the knee and hip are most commonly involved. Extraarticular involvement is rarely described. Synovial chondromatosis may be associated with impingement syndrome of the shoulder. We report a case of synovial chondromatosis of the subcoracoid bursa, which resulted in impingement symptoms.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
2/15. Synovial chondromatosis of the temporomandibular joint: varying presentation in 4 cases.Synovial chondromatosis is a rare condition in which cartilage is formed in the synovial membrane of a joint. The manifestations of this benign neoplastic process can mimic many common temporomandibular joint and parotid diseases. Four cases of synovial chondromatosis are presented. In each case, atypical presentation, coexisting joint disease, or both caused diagnostic confusion. The histories and physical examinations were initially consistent with more common joint diseases in each case. Imaging provided some insight into diagnosis and was a definitive indication for surgical treatment. Treatment by subtotal synovectomy and by removal of chondromatous nodules were undertaken in each case. No patient in our series has had recurrence of disease or symptoms after surgical treatment.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
3/15. osteochondromatosis with high concentration of procollagen II C peptide in joint fluid.procollagen II C peptide is used as a joint fluid marker of collagen synthesis by chondrocytes in patients with osteoarthritis. Since osteochondromatosis activates ectopic chondrogenesis in the synovial membrane, procollagen II C peptide is expected to be a good marker of the disease. procollagen II C peptide can be used to evaluate the condition of the disease metabolically by simply aspirating the joint fluid. We have experienced a case of osteochondromatosis (Miligram's stage 2) with a high concentration of procollagen II C peptide. This case suggests that the concentration of procollagen II C peptide is a good marker of chondrogenesis by osteochondromatosis.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
4/15. Synovial osteochondromatosis.A 75-year-old man of Fijian-Indian extraction complained of a 3-year history of progressive right knee pain and stiffness which were limiting his mobility. On examination, multiple hard nodules were palpable in the popliteal fossa and along the path of the quadriceps tendon. The joint line was not tender, knee flexion was limited to 60 degrees and there was a fixed flexion deformity of 5 degrees. The knee ligaments were intact. Examination of other joints did not reveal nodules. His past medical history included: (i) polyarticular gout, (ii) osteoarthritis of the left knee requiring total knee joint replacement 7 years previously, (iii) ischaemic cardiomyopathy, (iv) chronic atrial fibrillation, (v) chronic renal impairment, (vi) recent bacteraemic melioidosis without a primary focus, (vii) chronic bilateral rotator cuff tears, (viii) low-grade multiple myeloma and (ix) idiopathic pulmonary fibrosis.- - - - - - - - - - ranking = 32.013624238698keywords = ligament (Clic here for more details about this article) |
5/15. Is synovial osteo-chondromatosis a proliferative disease?In a case of synovial osteo-chondromatosis of the knee joint, foci of hyaline and calcified cartilage in the synovial membrane exhibited neither MIB-1-positive cells nor mitotic figures. Loose bodies of the synovial fluid showed a different proliferation behavior. In addition to cartilaginous nodules without MIB-1-positive cells, some of the bodies contained nearly 17% cells with MIB-1 activity. Besides the huge number of cells expressing the proliferation-associated antigen, no mitoses, except for a rare, possibly pycnotic mitosis, could be detected. It is assumed that owing to delayed fixation of the chondrocytes surrounded by a broad hyaline cartilaginous matrix, mitoses of these cells can be completed even in the absence of physiological nutrition. The observation described may explain the occurrence of multiple loose bodies in osteo-chondromatosis. According to Milgram's theory, pedunculated nodules of the synovial membrane can become detached, and thereafter appear in the synovial fluid. In this nourishing environment, they can grow to a certain degree; larger ones perhaps become fragmented because of the force of movement, resulting in smaller particles that grow again. This indicates a vicious circle that leads to a myriad of loose bodies.- - - - - - - - - - ranking = 2keywords = membrane (Clic here for more details about this article) |
6/15. Chromosome 6 abnormalities are recurrent in synovial chondromatosis.Synovial chondromatosis, a lesion composed of multiple nodules of cartilage involving articular or tendon sheath synovial membranes, has traditionally been considered a metaplastic condition. A specific or characteristic chromosomal anomaly has not yet been identified in synovial chondromatosis. Cytogenetic and molecular cytogenetic analyses of three cases of synovial chondromatosis revealed clonal karyotypic abnormalities in all three cases including structural abnormalities of chromosome 6 in two. Anomalies of chromosome 6 have been observed in three of five previously reported synovial chondromatosis cases. These findings support a neoplastic origin for synovial chondromatosis and suggest that chromosome 6 aberrations are recurrent in this lesion.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
7/15. Synovial chondromatosis with cranial extension.Synovial chondromatosis is a benign arthropathy characterized by metaplasia in synovial membranes that can produce detached particles of cartilage. It occurs most often in the knee, hip, and elbow but has been reported in the temporomandibular joint. This is a rare presentation of synovial chondromatosis with glenoid fossa erosion and cranial extension.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
8/15. Case report 692: Synovial chondrometaplasia of the 1st costovertebral joint.Synovial chondrometaplasia, also known as synovial chondromatosis, is a rare disease affecting the synovial membrane and characterized by a nodular proliferation of metaplastic cartilage. It most commonly involves large joints such as the knee, hip, and elbow, but its presence in unusual locations such as small joints and the temporomandibular joint has been described. To our knowledge, this is the first case report of synovial chondrometaplasia involving the costovertebral joint in a patient with a previous injury to that area.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
9/15. Synovial chondromatosis of the temporomandibular joint with extension to the middle cranial fossa.A rare case of synovial chondromatosis with extension to the middle cranial fossa is reported. Synovial chondromatosis, a benign disorder characterized by multiple cartilaginous, free-floating nodules that originate from the synovial membrane is not exclusive to the temporomandibular joint (TMJ). This condition is commonly seen in the axial skeleton and can involve multiple joints. In this case, synovial chondromatosis of the TMJ led to complete bony erosion of the glenoid fossa extending into the middle cranial fossa. Although plain radiographs showed the involvement of the joint, Computed tomography (CT) and magnetic resonance imaging (MRI) provided more detailed information about the lesion in all three dimensions. This case demonstrates the value of CT and MRI in both the diagnosis and treatment planning. A review of previously reported cases of synovial chondromatosis with cranial extensions is included.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
10/15. Synovial chondromatosis of the temporomandibular joint possibly secondary to trauma. A case report.A histologically confirmed case of synovial chondromatosis of the temporomandibular joint associated with a glenoid fossa callus is described. The lesion appeared 6 years after trauma to the chin. Conservative surgical treatment without excision of the synovial membrane or meniscus but including arthroplasty of both the eminence and the lateral side of the glenoid fossa was successful. The possible role of trauma in the etiology of synovial chondromatosis is discussed.- - - - - - - - - - ranking = 1keywords = membrane (Clic here for more details about this article) |
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