A condition marked by the presence of multiple osteochondromas. (Dorland, 27th ed)
Rare, benign, chronic, progressive metaplasia in which cartilage is formed in the synovial membranes of joints, tendon sheaths, or bursae. Some of the metaplastic foci can become detached producing loose bodies. When the loose bodies undergo secondary calcification, the condition is called synovial osteochondromatosis.

Acetabular dysplasia associated with hereditary multiple exostoses. A case report. (1/8)

Hereditary multiple exostoses is an autosomal dominant disorder characterised by multiple osteochondromata, most commonly affecting the forearm, knee and ankle. Osteochondromata of the proximal femur have been reported to occur in 30% to 90% of affected patients with coxa valga in 25%. Acetabular dysplasia is rare but has been described. This is the first report of a patient requiring surgical intervention. A girl was seen at the age of nine with hereditary multiple exostoses and when 12 developed bilateral pain in the groin. Radiographs showed severely dysplastic acetabula with less than 50% coverage of the femoral heads and widening of the medial joint space. Large sessile osteochondromata were present along the medial side of the femoral neck proximal to the lesser trochanter, with associated coxa valga. The case illustrates the importance of obtaining initial skeletal surveys in children with hereditary multiple exostoses to identify potential problems such as acetabular dysplasia and subluxation of the hip.  (+info)

Synovial osteochondromatosis of the elbow. (2/8)

We present 12 patients with synovial osteochondromatosis of the elbow treated by synovectomy. Histological review showed that seven cases were primary and five secondary osteochondromatosis. The patients with primary disease had a mean improvement in the flexion arc from a preoperative value of 40 degrees to 123 degrees to 5 degrees to 128 degrees when reviewed at a mean of nine years after operation. The secondary group had a mean improvement in the flexion arc from a preoperative value of 21 degrees to 98 degrees to 4 degrees to 131 degrees at a mean of 6.8 years after operation. There was recurrence in two of seven patients in the primary group and three of five in the secondary group. Osteoarthritis developed in six elbows in the primary and in three in the secondary group. Osteoarthritis secondary to synovial osteochondromatosis is progressive. In the established condition, the distinction between primary and secondary disease may be of greater histological than clinical relevance.  (+info)

Osteochondromatosis in a Rhesus macaque (Macaca mulatta). (3/8)

A 5-y-old, male, rhesus macaque (Macaca mulatta) presented with a prominent mass slightly anteriomedial to the right stifle. On exam, multiple radiopaque masses were identified protruding from the mid- and distal femur. Lateral and anteroposterior radiographs of the right stifle region revealed multiple exophytic masses arising from the femur, with mild bony reaction of the proximal tibia. Histologic examination of biopsy tissue revealed woven and lamellar bone with granulation tissue and skeletal muscle. Because the macaque was exhibiting no lameness or signs of pain, we decided to monitor the progression of the masses. Minimal change was noted during the time prior to study termination at 6.5 y of age. Necropsy revealed that the bony masses were cartilage-capped lesions arising near the growth plate of the distal femur and midshaft of the femur and tibia. Histologic examination revealed chondro-osseous exophytic growths that blended imperceptibly with the cortex and spongiosa of the femur, consistent with a final diagnosis of multiple osteochondromas.  (+info)

Cartilaginous tumours and calcified lesions of the hand: a pictorial review. (4/8)

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Neglected synovial osteochondromatosis of the elbow: a rare case. (5/8)

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Dominant carpotarsal osteochondromatosis. (6/8)

Dominant carpotarsal osteochondromatosis is a particular disorder of the wrist and tibiotalar joints with abnormal bone proliferation and osteochondromas. Two patients, a mother and son, are described here; a similar condition has previously been described in seven affected members of a family. The upper and the lower limbs are affected in the same patient and the lesion can be bilateral. Autosomal dominant inheritance is a further criterion allowing the diagnosis of dysplasia epiphysealis hemimelica.  (+info)

Osteochondroma of the thoracic spine: an unusual cause of spinal cord compression. (7/8)

A 24-year-old man with hereditary multiple exostoses had numbness of the lower extremities and difficulty walking. CT displayed a calcified extradural mass lesion within the spinal canal at T-8 causing cord compression. MR imaging showed it to be contiguous with the upper endplate of T-8, suggesting the diagnosis of osteochondroma, a rare cause of cord compression, and distinguishing the lesion from a calcified disk fragment.  (+info)

Cervical laminar exostosis in multiple hereditary osteochondromatosis: anterior stabilization and fusion technique for preventing instability. (8/8)

Multiple hereditary osteochondromatosis is a genetically transmitted disorder consisting of multiple projections of bone capped by cartilage, which are called exostoses. Spinal cord compression due to expansion of a laminar osteochondroma is rare but well recognized. Surgical decompression usually improves the patient's neurological status but, in cervical exostosis, post-laminectomy kyphosis and instability problems, especially in the high-risk adolescent group, form the most significant potential difficulties in the postoperative period. We report a case of cervical laminar exostosis that was treated by anterior stabilization and fusion and discuss the benefits of this technique.  (+info)

Osteochondromatosis is a benign (non-cancerous) condition where bone and cartilage grow outside the ends of bones, forming growths known as osteochondromas. These growths typically occur in areas where bones are growing actively, such as near the joints.

Osteochondromatosis can be hereditary or may develop sporadically. The hereditary form is called hereditary multiple exostoses (HME) or multiple osteochondromas, and it affects several bones in the body. In contrast, the sporadic form typically affects only one bone or a small number of bones.

Osteochondromatosis can cause various symptoms depending on the location and size of the growths. Some people with this condition may not experience any symptoms at all. However, if the osteochondromas grow near joints, they can cause pain, stiffness, or limited mobility. In some cases, the growths may also compress nerves or blood vessels, leading to additional complications such as numbness, tingling, or weakness in the affected limbs.

It is important to note that while osteochondromatosis itself is not cancerous, there is a small risk that the osteochondromas may undergo malignant transformation and develop into chondrosarcoma, a type of bone cancer. Regular follow-up with an orthopedic specialist is recommended to monitor any changes in the growths over time.

Synovial chondromatosis is a rare condition that affects the synovial membrane, which is the lining of joints, bursae (fluid-filled sacs that cushion bones), and tendon sheaths. In this condition, nodules made up of cartilage form in the synovial membrane. These nodules can detach from the synovial membrane and float freely in the synovial fluid, which lubricates the joint. If they become numerous, they can cause joint pain, stiffness, and decreased range of motion. In some cases, the loose bodies may also cause locking or catching sensations in the joint. Surgery is typically required to remove the cartilaginous nodules and relieve symptoms. If left untreated, synovial chondromatosis can lead to osteoarthritis and other joint problems.

Types include:[citation needed] Hereditary multiple exostoses Synovial osteochondromatosis "osteochondromatosis" at Dorland's ... Osteochondromatosis is a condition involving a proliferation of osteochondromas. ...
Crotty JM, Monu JU, Pope TL (March 1996). "Synovial osteochondromatosis". Radiol. Clin. North Am. 34 (2): 327-42, xi. doi: ... Synovial osteochondromatosis (SOC) (synonyms include synovial chondromatosis, primary synovial chondromatosis, synovial ...
Named with Hungarian surgeon, Eugen Pólya (1876-1944) Reichel's syndrome: Also known as synovial osteochondromatosis. Reference ...
The symptoms of multiple osteochondromatosis are similar to solitary osteochondroma, but they are often more severe. Painless ... for osteochondroma can also identify diseases such as secondary peripheral chondrosarcoma and multiple osteochondromatosis. In ...
Popliteal artery pseudoaneurysm caused by non-penetrating trauma in a patient with hereditary multiple osteochondromatosis. ... familial osteochondromatosis)". Clinical Genetics. 66 (2): 144-51. doi:10.1111/j.1399-0004.2004.00275.x. PMID 15253765. S2CID ...
In the case of synovial osteochondromatosis, the synovial hypertrophy is accompanied by intermediate signal cartilaginous loose ...
... tunnel syndrome Carpenter syndrome Carpenter-Hunter type Carpo tarsal osteolysis recessive Carpotarsal osteochondromatosis ...
... osteochondromatosis MeSH C05.116.099.708.670.615.325 - exostoses, multiple hereditary MeSH C05.116.099.708.685 - osteogenesis ...
... osteochondromatosis MeSH C04.557.450.565.575.610.615.325 - exostoses, multiple hereditary MeSH C04.557.450.565.575.625 - ...
Joint locking is a common symptom of: Osteoarthritis Osteochondritis dissecans Synovial osteochondromatosis Tear of meniscus of ...
... multiple osteochondromatosis, neurofibromatosis type 1/2, nevoid basal-cell carcinoma syndrome (Gorlin syndrome), Peutz-Jeghers ...
... osteoblastoma M9210/0 Osteochondroma Cartilagionus exostosis Cartilaginous exostosis Ecchondroma M9210/1 Osteochondromatosis, ...
Syngnathia multiple anomalies Synostosis of talus and calcaneus short stature Synovial cancer Synovial osteochondromatosis ...
Osteochondromatosis - Osteochondrosis - Osteoclast - Osteocyte - Osteofibrous dysplasia - Osteogenesis imperfecta - Osteoid ...
Types include:[citation needed] Hereditary multiple exostoses Synovial osteochondromatosis "osteochondromatosis" at Dorlands ... Osteochondromatosis is a condition involving a proliferation of osteochondromas. ...
Osteochondroma and Osteochondromatosis (Hereditary Multiple Exostoses) Imaging Updated: Mar 02, 2020 * Author: Ali Nawaz Khan, ... Multiple osteochondromatosis. Plain radiograph of the lower limbs of a 10-year-old boy with a family history of hereditary ... Multiple osteochondromatosis. Plain radiograph of the lower limbs of a 10-year-old boy with a family history of hereditary ... Multiple osteochondromatosis. Radiograph of the pelvis in a 28-year-old woman known to have hereditary multiple exostoses who ...
"Osteochondromatosis" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical ... This graph shows the total number of publications written about "Osteochondromatosis" by people in this website by year, and ... Below are the most recent publications written about "Osteochondromatosis" by people in Profiles. ... whether "Osteochondromatosis" was a major or minor topic of these publications. To see the data from this visualization as text ...
Perazzi A, Bernardini M, Mandara MT, et al. J Feline Med Surg 2013;15:1132-1136. A 1-year-old sexually intact male Korat cat was referred for ophthalmological consultation due to anisocoria. Mydriasis with external ophthalmoplegia and absence of pupillary light responses in the right eye and nasofacial hypalgesia were seen. Cavernous sinus syndrome (CSS) was suspected. Bilateral deformities
Osteochondromatosis of the shoulder in a twelve-year-old boy. In: Journal of Shoulder and Elbow Surgery. 2007 ; Vol. 16, No. 1 ... Osteochondromatosis of the shoulder in a twelve-year-old boy. / Katoh, Hiroyuki; Ogawa, Kiyohisa; Ikegami, Hiroyasu et al. In: ... Katoh H, Ogawa K, Ikegami H, Inokuchi W, Toyama Y. Osteochondromatosis of the shoulder in a twelve-year-old boy. Journal of ... Osteochondromatosis of the shoulder in a twelve-year-old boy. Hiroyuki Katoh, Kiyohisa Ogawa, Hiroyasu Ikegami, Wataru Inokuchi ...
Multiple osteochondromatosis, see Hereditary multiple osteochondromas. *Multiple pterygium syndrome. *Multiple schwannomas, see ...
4. Synovial Osteo Chondromatosis. Synovial osteochondromatosis is a disorder of the synovial lining characterized by cartilage ... Synovial osteochondromatosis has an incidence of 1 in 10,000, is mono-articular in 95% of cases and 50% of cases involve the ... Synovial Osteochondromatosis in a patient following knee arthroplasty. Note the low T1 and T2 mineralized foci within the ... Synovial-Osteochondromatosis: Non-mineralized: T1-low/intermediate intensity; T2-high intensity. Mineralized type: low ...
SHOULDER SYNOVIAL OSTEOCHONDROMATOSIS. Shoulder synovial osteochondromatosis (or synovial chondrometaplasia) is a rare disease ... Pool (R.R) Osteochondromatosis in BOJRAB (M.J) Disease mechanisms in small animal surgery, Lea & Febiger 1993, 820-833 ... Beside the shoulder joint, synovial osteochondromatosis has also been described in the tarsal, stifle, elbow and carpal joint. ... 9. Gregory (S.P), Pearson (G.R) Synovial osteochondromatosis in a Labrador retriever bitch JSAP, 1990, 31, 580-583 ...
Osteochondromatosis (Discovered in the American Staffordshire Terrier) Osteochondromatosis is a condition causing benign bone ...
secondary synovial osteochondromatosis. * depositional *amyloid arthropathy. * crystal arthropathy *calcium pyrophosphate ...
Value of the bone scintigraphy in multiple osteochondromatosis with sarcomatous degeneration. V.Sánchez-Rodríguez, F.Medina- ... Secondary Chondrosarcoma Arising from Osteochondroma(tosis). Hyun-minCho, Seung-KooRhee, Yong-KooKang, Yang-GukChung, An-HiLee ...
Osteochondroma and Osteochondromatosis (Hereditary Multiple Exostoses) Imaging * 2002943343-overviewDiseases & Conditions. ...
Synovial Osteochondromatosis of the Subtalar Joint in an Adolescent Baseball Player Chae JW, Cho HL, Oh YS, Lee WS ... Smaller joints are rarely affected and it may be progressed to osteochondromatosis... ...
Osteochondromatosis have a well-known hereditary occurrence in males more frequently than females. ...
Milgram J. Synovial osteochondromatosis : a histopathological study of thirty cases. J Bone Joint Surg (Am Vol). 1977;59(6):792 ... Arthroscopic treatment of synovial osteochondromatosis of the elbow. Case report and literature review. Rev Bras Ortop. 2015;50 ...
Barton Branam, MD is an Assistant Professor with the Department of Orthopaedic Surgery.  He  graduated from the University of Cinc...
Sacroiliac joint involvement in osteochondromatosis: identifying its prevalence and characteristics from cross-sectional ...
Osteochondromatosis syndrome (disorder) [Ambiguous], Multiple exostosis syndromes, Multiple congenital exostosis Cross ...
Osteochondromatosis (Discovered in the American Staffordshire Terrier). *Osteogenesis Imperfecta (Discovered in the Beagle) ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...
Osteochondromatosis Osteochondromatosis, Synovial use Chondromatosis, Synovial Osteochondrosis Osteoclastic Bone Loss use Bone ...

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