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Results for “MYOSITIS OSSIFICANS”

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PubMedDate not supplied

Fine needle aspiration cytology of myositis ossificans.

Fine needle aspiration was performed on a large soft tissue mass of the left thigh and hip region in a 27-year-old paraplegic man. Cytologic examination revealed sheets of immature fibroblasts and scattered skeletal muscle cells in various stages of degeneration compatible with myositis ossificans. This case is probably the first needle aspiration cytology of this lesion. The danger of confusing the cytology with that of a sarcoma is emphasized.

Adult↗
PubMed1985

Myositis ossificans with Ga-67 citrate positivity.

A 16 year-old boy presented with a firm mass within the left thigh. Ga-6 7 citrate and bone scintigraphy revealed soft tissue radiotracer accumulation within the mass lesion. Radiographs and xerography of the left thigh revealed calcification within the soft tissue mass typical of myositis ossificans. The patient's clinical course was uneventful.

Adolescent↗
PubMed1993

Three-dimensional CT diagnosis of myositis ossificans of the sacrospinous ligament.

We present the case of a 4-year-old female with a complex fracture of the left hemipelvis who, on follow-up CT imaging, developed new ossific densities within the peripelvic soft tissues of the contralateral side. Three-dimensional surface reformations of the pelvis demonstrated myositis ossificans along the course of the right sacrospinous ligament, thus elucidating unsuspected ligamentous injury and implying prior instability.

Child, Preschool↗
PubMed2003

An unusual tumor of the spermatic cord: myositis ossificans.

OBJECTIVES: Tumors of the spermatic cord and epididymis are rare, and their exact incidence is difficult to determine. Ninety percent of extra testicular tumors within the scrotum are found in the spermatic cord, where 30% is malignant (1). METHODS: In this case report we present an unusual spermatic cord tumor, i.e. myositis ossificans (MO). To the best of our knowledge, MO of the spermatic cord has not been reported before in the literature. CONCLUSIONS: MO should be considered in the differential diagnosis of the spermatic cord tumors.

Genital Diseases, Male↗
PubMed1981

Myositis ossificans in hemophilia.

A review of the radiographs of 60 hemophilia patients showed nine (15%) with ectopic new bone formation. Three of these patients had multiple sites of involvement. The high frequency discovered in this series contrasts with the paucity of descriptions to be found in the literature. This process of myositis ossificans affects the lower half of the body and probably represents dysplastic metaplasia developing at the site of an intramuscular hematoma when remote from bone, as well as ossification of hemorrhagic lesions related to the periosteum. In conventional radiographs anatomic localization of bone foci is difficult, but use of computed tomography permits precise identification of the affected muscle. There is negligible disability associated with this condition.

Adolescent↗
PubMedDate not supplied

Myositis ossificans in early childhood.

A 5-year-old boy underwent arthroscopic surgery because of a lateral discoid meniscus, which was followed by an overly strenuous rehabilitation program. At 6-week follow-up, a painful mass at the distal part of the thigh and a flexion restriction of the operated knee were detected, caused by myositis ossificans inside the vastus medialis muscle. The symptoms disappeared with an appropriate rehabilitation program and the patient recovered.

Arthroscopy↗
PubMed1980

Myositis ossificans following forcible manipulation of the leg. A rabbit model for the study of heterotopic bone formation.

The right hind limbs of forty-four rabbits were immobilized with the knee in extension for as long as five weeks, except for a daily session of forcible mobilization lasting five minutes. Within five weeks there was progressive heterotopic-bone formation in the quadriceps muscle. The roentgenographic and histological changes were similar to those seen in human myositis ossificans.

Animals↗
PubMed1984

Malignant myositis ossificans: occult gastric carcinoma presenting as an acute rheumatic disorder.

A patient developed ossifying skeletal muscle metastases from a primary gastric mucin-producing adenocarcinoma. The unusual nature of skeletal muscle metastases and the inflammatory-like syndrome associated with heterotopic ossification is reviewed. It is suggested that this case of 'neoplasm-induced post-traumatic myositis ossificans' may be caused by the interaction of local haemorrhage and thrombosis, mucin-producing tumour implants, and the presence of large quantities of gamma-carboxyglutamic acid, an amino acid associated with the calcification of bone matrix formation.

1-Carboxyglutamic Acid↗
PubMedDate not supplied

Chondrosarcoma and myositis ossificans.

OBJECTIVE: To discuss the clinical radiographic findings in a 70-yr-old woman suffering from chondrosarcoma. CLINICAL FEATURES: The patient experienced right SI pain present initially only at night. She later developed morning numbness. An X-ray examination revealed a flocculent calcification in the right buttock region. Computed tomographic scans confirmed the diagnosis. INTERVENTION AND OUTCOME: Initial palliative care continued until surgery was performed to resect the area. CONCLUSION: Chondrosarcoma is a severe disease that must be differentiated from myositis ossificans.

Aged↗
PubMed1995

Myositis ossificans traumatica of sternocleidomastoid muscle presenting as cervical lymph-node metastasis.

It is well known that clinical assessment of the metastatic status of the cervical lymph nodes in patients with squamous cell carcinoma of the upper aerodigestive tract is frequently inaccurate, and several causes for false-positive assessments are well described. We report a novel cause, namely, a case of myositis ossificans traumatica of the sternocleidomastoid muscle, which presented as a neck mass after a direct laryngoscopy for biopsy of a laryngeal squamous cell carcinoma. The importance of this lesion is that it should be considered in the clinical differential diagnosis of swellings in the neck.

Aged↗
PubMed1984

Heterotopic bone formation (myositis ossificans) and lower-extremity swelling mimicking deep-venous disease.

A quadriplegic patient with a swollen leg was suspected of having deep-venous thrombosis, and was studied with radionuclide venography (RNV) and contrast venography. Focal narrowing of the femoral vein, seen on RNV, was due to extrinsic compression. Although soft-tissue radiographs were normal, Tc-99m diphosphonate imaging established the diagnosis of early heterotopic bone formation (myositis ossificans), which was responsible for the venous compression. Clinically this inflammatory process can mimic deep-venous thrombosis, and should be considered in evaluating patients at risk for both heterotopic bone formation and deep-venous thrombosis.

Adult↗