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Results for “MYOSITIS OSSIFICANS”

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PubMed1994

Case report 878: Densely calcifying synovial sarcoma of the hip metastatic to the lungs.

We discuss a patient with an occult, densely calcified synovial sarcoma of the hip who came to clinical attention because of pulmonary metastases. When synovial sarcomas present with dense and conglomerate calcification, they may be confused with benign processes such as myositis ossificans or tumoral calcinosis. Malignancies such as extraskeletal osteogenic sarcoma, extraskeletal chondrosarcoma, and mesenchymal chondrosarcoma must also be considered in the differential diagnosis.

Adult↗

PubMed1987

[Treatment of unstable fractures of the proximal end of the humerus using elastic curved intramedullary wires].

At the Accident Hospital Lorenz Böhler and the Accident Hospital Meidling in Vienna, 48 patients with proximal humeral fractures were treated by closed reduction, intramedullary fixation with elastic pins and immobilization for two weeks in a Velpeau type stockinette (Gilchrist) between February 1985 and February 1986. The pins have a diameter of 2 mm. At there lower end there is a 20 mm long elastic curve which is ment to anker the pin in the entry hole to the intramedullary cavity, preventing sliding out of the implant. At the upper end the last 20 mm of the wire are angulated for 15 degrees. AO-classification was used. 39 patients had surgical neck-fractures. There were 34 displaced fractures (AO-type A 2/2), six dislocation- and more segment fractures and three epiphyseal separations of the adductiontype. The functional results of 36 patients were evaluated according to Neer's table. 29 patients had more than 80 points, four patients had more than 70 points and three had poor results. Reason for poor results was in one case a fracture with dislocation of the greater tuberosity which should have been treated by open reduction and the age in a 82 year old patient, who had a poor functional result after twelve weeks of treatment despite good fracture healing. There were no problems with wound healing, infections, myositis ossificans or Sudeck disease. Closed reductions of unstable surgical neck fractures and intramedullary fixation causes least damage to the soft tissues of the shoulder, leading to early good functional results.

Adolescent↗

PubMed1984

[Irreparable isolated dislocation of the radius head].

Isolated traumatic dislocation of the radial head is rare. It occurs when the elbow is partly outstretched and the forearm pronated . Occasionally one is unable to achieve closed reduction. Then the open treatment is necessary. Posttraumatical myositis ossificans was described in the literatur .

Adolescent↗

PubMed2003

MR imaging of soft tissue tumors and tumor-like lesions.

The evaluation of a soft tissue mass in a child should proceed with a differential diagnosis in mind, based on the clinical history, age of the child, and location of the abnormality. Small, superficial masses can be initially evaluated with sonography. More extensive or deep lesions usually require cross-sectional imaging. With the exception of myositis ossificans, magnetic resonance (MR) imaging has largely replaced the use of computed tomography. MR imaging is used to delineate the extent of a lesion, to evaluate response to therapy, and to monitor postoperative complications. There is great overlap in the MR imaging characteristics of benign and malignant lesions, making tissue sampling imperative for diagnosis.

Child↗

PubMed2002

A low-grade extraskeletal osteosarcoma.

The case of a 35-year-old woman with low-grade extraskeletal osteosarcoma of the left leg is presented. Radiographs showed peripheral ossification of the lesion, suggesting myositis ossificans. Most of the tumor was composed of cartilage, and the cellularity and cell atypia of the proliferating chondrocytes were mild to moderate. In the periphery, bone formation with a relatively clear margin and proliferation of spindle cells with minimal nuclear atypia were observed. The average percentage of cells positive for MIB-1 was 9.0%. A diagnosis of low-grade extraskeletal osteosarcoma was made on the basis of these histologic findings. The clinical course 47 months after a wide excision was uneventful.

Adult↗

PubMed2004

Periosteal osteoblastoma of the distal femur.

Osteoblastomas located on the surface of the cortical bone, so-called periosteal osteoblastomas, are extremely rare. We report on a case of periosteal osteoblastoma arising from the posterior surface of the right distal femur in a 17-year-old man. Roentgenographic, computed tomographic, magnetic resonance imaging, and histologic features of the case are presented. Periosteal osteoblastoma should be radiologically and histologically differentiated from myositis ossificans, avulsive cortical irregularity syndrome, osteoid osteoma, parosteal osteosarcoma, periosteal osteosarcoma, and high-grade surface osteosarcoma. Although periosteal osteoblastoma is rare, this tumor should be included in the differential diagnosis of surface-type bone tumors.

Adolescent↗

PubMed2004

Musculoskeletal disorders associated with HIV infection and AIDS. Part II: non-infectious musculoskeletal conditions.

This section of a two-part series on musculoskeletal disorders associated with HIV infection and AIDS reviews the non-infectious musculoskeletal conditions. In the first part, the infectious conditions were reviewed. The non-infectious conditions include polymyositis, drug-induced myopathy, myositis ossificans, adhesive capsulitis, avascular necrosis, bone marrow abnormalities, and hypertrophic osteoarthropathy. Inflammatory and reactive arthropathies are more prevalent in HIV-positive individuals, and a separate section is dedicated to these conditions, including Reiter's syndrome, psoriatic arthritis, HIV-associated arthritis, painful articular syndrome, and acute symmetric polyarthritis. Lastly, we include a discussion of HIV-related neoplastic processes that affect the musculoskeletal system, namely Kaposi's sarcoma and non-Hodgkin's lymphoma.

Acquired Immunodeficiency Syndrome↗

PubMed1996

The pelvic digit: five new examples of an unusual anomaly.

Five new cases of a rare congenital anomaly known as the "pelvic digit", were each discovered incidentally on a radiographic examination of the pelvis. The features are described, using tomograms in some cases to show the most important and typical radiographic signs of this anomaly. We review the cases previously reported in the literature and discuss the features in the differential diagnosis between the pelvic digit, myositis ossificans, avulsion injury of the pelvis and the pelvic rib.

Adult↗

PubMed2002

Juxtacortical osteoma of the ulna.

Acase of juxtacortical osteoma of the ulna in a 47-year-old woman is presented. She had a dense bony mass on the ulna. Radiological examinations (plain radiography, computed tomography, magnetic resonance imaging) strongly suggested a rare case of juxtacortical osteoma of a long tubular bone. The differential diagnosis included parosteal osteosarcoma, melorheostosis, osteochondroma, end-stage juxtacortical myositis ossificans, and fibrous dysplasia protuberans. The tumor was excised totally for thorough pathological examination, which revealed it to be composed of lamellar bone, suggesting that the origin was periosteal.

Biopsy, Needle↗

PubMed1975

Radiologic examination of trismus as a complication of cancrum oris.

In the radiologic examination of trismus complicating cancrum oris, abnormalities can be detected in the soft tissues, osseous tissues, and temporomandibular joint. In the soft tissue, scar formation may show as a depression in the normal smooth, convex contour of the lateral aspect of the face. There may be a myositis ossificans in the soft tissue, producing bony bars that lead to extra-articular ankylosis. By far the most important changes are in the temporomandibular joint, where there can be varying degrees of joint narrowing, sclerosis of the articular cortex, flattening of the mandibular condyle and occasionally also of the eminentia articularis, osteophytosis, and intra-articular bony ankylosis. Hypoplasia may involve the entire hemimandible or be restricted to its condyloid process. The latter may lead to compensatory enlongation and hypertrophy of the coronoid process. Bony ankylosis of the coronoid process to the posterior wall of the maxilla was seen in three cases. The pathogenesis of these changes is discussed.

Adolescent↗

PubMed1985

Pseudomalignant osseous tumor of the temporalis muscle.

A case is presented of a 10-year-old girl who had a benign osseous tumor of the temporalis muscle. The tumor appeared to be a variant of the so-called pseudomalignant osseous tumor of the soft tissues and could readily be distinguished from both osteogenic sarcoma and myositis ossificans.

Child↗

PubMed1987

Skeletal blood flow in metabolic disorders of the skeleton.

Results are presented of measurements of skeletal blood flow made in 80 patients with painful benign or malignant diseases of the skeleton, excluding patients with Paget's disease. In crush fracture osteoporosis, total bone blood flow was slightly lower than normal although skeletal perfusion was normal. High values of bone blood flow were seen in 14/20 patients with osteomalacia and 3/12 patients with primary hyperparathyroidism. Very high values, comparable to those seen in the most severely affected patients with Paget's disease, were seen in polyostotic fibrous dysplasia, 2 out of 4 cases of Engelmann's disease and 1 out of 3 cases of renal osteodystrophy. Results were less elevated in myositis ossificans, secondary skeletal involvement with breast and prostatic carcinomata, myelomatosis and sympathetic osteodystrophy.

Adolescent↗

PubMed2006

Soft tissue osteochondroma: case report and immunohistochemistry for parathyroid hormone-related protein.

Surface lesions of bone usually present little diagnostic dilemma because the majority are conventional osteochondromas. Other surface bone lesions include periosteal chondroma, periosteal chondrosarcoma, and parosteal osteosarcoma. Mineralized soft tissue lesions such as myositis ossificans, synovial chondroma, and synovial sarcoma may present in a similar fashion when they occur in a juxtaarticular position. The soft tissue osteochondroma or paraarticular osteochondroma may simulate some of these more aggressive tumors, and its recognition is important to avoid overtreatment. A case of an 11-year-old male with a soft tissue osteochondroma is reported to illustrate the characteristic radiographic and histological features of this rare entity. No prior reports have examined soft tissue osteochondroma for expression of parathyroid hormone related protein, an established cartilage tumor proliferative mitogen.

Biomarkers, Tumor↗

PubMed2005

Fibro-osseous pseudotumour of the digit--amputation for a benign but aggressive lesion.

Fibro-osseous pseudotumour is a rare, benign lesion which behaves aggressively and is, therefore, commonly misdiagnosed as a malignancy. Fibro-osseous pseudotumour shares many features with myositis ossificans and many consider it to be a subcutaneous variant of the latter. Early diagnosis and treatment by excision to normal tissue margins is important to preserve function and avoid digital amputation. We report a case of fibro-osseous pseudotumour of the finger which required ray amputation due to rapid progression of the lesion.

Aged↗

PubMed2005

Hamstring injuries of the hip.

Hamstring injuries can be classified with regard to the site of involvement. Traumatic disorders at the proximal bone-tendon origin are best defined as avulsion injuries, such as ischial tuberosity fractures and hamstring tendon tears. Musculotendinous lesions include muscle strains and muscle contusions. Most hamstring injuries occur after in-direct trauma from excessive stretching or forceful contraction, leading to avulsion injuries or muscle strains and tears. Insufficient warm-up, lack of flexibility, inadequate muscle strength and endurance, or abnormal contraction and running may predispose to such injuries. In the event of blunt direct trauma, a muscle contusion, intramuscular hematoma, myositis ossificans, or compartment syndrome may develop.

Athletic Injuries↗

PubMed2000

Behaviour of an artery enclosed within a normal or hypertrophic callus of a long-bone fracture.

The behaviour of the brachial artery enclosed in a hypertrophic or a normal callus was investigated in experimentally produced fractures of the humerus in 22 dogs. The brachial artery was displaced in a bony groove created at the fractured ends of the bone. The fracture was immobilized with a metal plate and four screws. The progress of the callus formation was studied and the patency of the artery was evaluated. In 15 out of the 22 animals a medium-sized or hypertrophic callus had developed that engulfed the brachial artery without obstructing its lumen and blood flow. In five dogs the fracture site was infected and the resultant osteomyelitis obstructed the artery. In the remaining two dogs the arterial lumen was extremely narrowed, due to breaking of the plate and formation of pseudarthrosis in one and injury of the artery in the other. Unless complicated by infection resulting in vascular occlusion, callus at the fracture site may engulf an artery without interference in its patency and blood flow. The possible involvement of a functioning artery within a callus or a mass of heterotopic ossification (myositis ossificans) should be kept in mind during surgical treatment of old fractures, hypertrophic callus with pseudarthrosis or extensive heterotopic ossification.

Animals↗

PubMed2002

Surgical management of the severely displaced supracondylar fracture of the humerus in children.

We reviewed 44 children with a widely displaced supracondylar fracture of the humerus (Gartland grade III) treated with primary open reduction and cross pinning. The average age was 8 years and the mean delay in presentation was 34 h. Comminution of the medial supracondylar pillar was seen in 57% of the cases. After treatment, the range of the elbow motion was restricted in eight patients. Cubitus varus was not seen. There was no deep infection or myositis ossificans. Post-operatively, five children had a temporary nerve palsy. According to Flynns' criteria, 42 patients had a satisfactory outcome.

Adolescent↗

PubMed1993

Thigh injuries in athletes.

The thigh, which consists of the heavily muscled region around the femur, is vulnerable to many types of athletic injury. This review addresses the assessment, prevention, and rehabilitation of both the common thigh injuries associated with participation in sports, such as contusions and myositis ossificans traumatica, and a few relatively uncommon but diagnostically important entities that sports physicians must recognize when an athlete has pain or dysfunction attributable to the thigh. Dividing the thigh into anatomic compartments aids in both differential diagnosis and understanding of the pathomechanics that lead to injury. Rehabilitation is especially emphasized because improper selection of modalities or misuse of exercise can seriously impede or worsen recovery. Conversely, the use of appropriate rehabilitation principles and new concepts in exercise prescription can decrease morbidity and lead to rapid resumption of sports.

Athletic Injuries↗