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Query: UMLS:C0027121 (myositis)
 4,538 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Myositis ossificans is a non-neoplastic heterotopic bone formation within muscle or soft tissues. The most commonly involved muscles are the muscles of the upper arm and thigh. Occurrence in the head and neck is rarely encountered clinically. A 53-year-old Turkish man (farmer) was operated on for traumatic myositis ossificans circumscripta in his neck. During the operation the mass was found to originate from the scalenus medius muscle and was readily and completely dissected from surrounding tissues. The histologic examination of the specimen revealed focal cartilage and mature bone tissue, which was compatible with the late stage of myositis ossificans. In 5 years of follow-up, the patient has remained asymptomatic and no signs of recurrence have been noted.
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PMID:Myositis ossificans in the neck. 1033 11

Myositis ossificans originating from the chest wall is extremely rare. We report a case of myositis ossificans occurring in a young woman with progressive painful swelling in the chest wall. Preoperative examination suggested a malignant neoplasm originating from soft tissue. Although rare, myositis ossificans is one of the potential causes of painful swelling in the chest wall, and can be mistaken for a malignant neoplasm.
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PMID:Myositis ossificans of the chest wall simulating malignant neoplasm. 1109 27

Myositis Ossificans After a Supracondylar Fracture of the Humerus in a Child. In addition to the better known complications of supracondylar humerus fractures, myositis ossificans is often listed as a less common complication. This complication is extremely rare in children and historically has been attributed to high-energy trauma, manipulation, surgical intervention, aggressive passive range-of-motion exercises, or associated head injury. We present a case report of a 3-year-old girl who developed myositis ossificans after a low-energy supracondylar fracture of the humerus despite having been treated without manipulation, surgery, or physical therapy. This report illustrates that supracondylar humerus fractures can be complicated by myositis ossificans despite the best attempts at prevention.
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PMID:Myositis ossificans after a supracondylar fracture of the humerus in a child. 1123 43

Myositis ossificans is usually the result of direct injury to a muscle and is a self-limiting disease. It may present as a soft-tissue mass with a broad differential diagnosis, including highly malignant tumours, such as soft-tissue sarcomas. Many theories can be found concerning the aetiology of myositis ossificans, but minor or major traumas are considered to be the most common cause. A unique case of myositis ossificans of the neck in a 17-year-old professional, female, ground gymnast, who presented initially with a soft-tissue tumour, was treated successfully. The main differential diagnosis is presented along with typical radiographic features on conventional radiography, computerised tomography and magnetic resonance imaging, and typical pathological appearance, such as the pathognomonic "zoning phenomenon". Myositis ossificans should be added to the differential diagnosis of every young patient who engages in sport presents with a soft-tissue mass. Careful padding of the area and teaching the rolling technique to avoid repeated injuries to the neck can prevent recurrence.
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PMID:A young athlete with myositis ossificans of the neck presenting as a soft-tissue tumour. 1131 89

Myositis ossificans is a pathologic entity rarely met, but still it must be kept in mind in differential diagnosis of a tender soft tissue swelling. The authors present an 8-year old boy with nontraumatic myositis ossificans circumscripta in the left paravertebral muscle. In diagnostic workup, ultrasonography and computed tomography (CT)-scan showed a well marginated, regular, ossified mass in the paravertebral muscle, but we were not able to exclude malignancy on the clinical grounds. The mass was excised totally, and the histopathologic examination found myositis ossificans. The authors suggest that surgical intervention may be an option for diagnosis and treatment in unusual cases when diagnosis is not certain.
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PMID:Nontraumatic myositis ossificans with an unusual location: case report. 1240 51

Myositis ossificans is a benign heterotopic ossifying condition of soft tissues. The lesion may cause persistent functional impairment of adjacent joints. Surgical intervention is often needed to regain normal function, even though a high recurrence rate is reported. In the present case, we found that recurrent myositis ossificans could not be demonstrated by radiography during the early stage. However, ultrasonography proved to be an excellent tool for detecting early recurrence of myositis ossificans and for distinguishing the condition from extraosseous sarcomas.
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PMID:Usefulness of ultrasonography for early recurrent myositis ossificans. 1266 65

Myositis ossificans is a heterotopic ossification of skeletal muscles which is commonly seen after trauma. However, it is rarely seen as a complication of tetanus. We report a case of myositis ossificans following tetanus in a female adult patient presenting with ankylosis of both elbows in extension.
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PMID:A case of myositis ossificans as a complication of tetanus treated by surgical excision. 1287 13

Chronic groin pain is common in soccer players because of the biomechanics of kicking causing recurrent stress to the abdominal muscles, groin flexors, and adductor muscles. Myositis ossificans in adductor muscles is a rare cause of chronic groin pain in soccer players. Only two cases have been reported and the iliopsoas muscle was involved in both. This case report emphasises the importance of direct radiography for diagnosis in chronic groin pain and is a reminder that the development of myositis ossificans in the adductor muscles may be a cause.
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PMID:Chronic groin pain in an amateur soccer player. 1503 65

Myositis ossificans traumatica is a rare clinical entity in the maxillofacial region. We present a case of myositis ossificans traumatica of the temporalis muscle following dental treatment in the form of a clinicopathologic conference. A review of the literature supporting our findings is provided.
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PMID:Clinicopathologic conference: trismus following dental treatment. 1535 61

Myositis ossificans is a benign, localized, self-limiting ossifying soft tissue mass with unknown pathogenesis. It may be confused with a malignant tumor of bone or soft tissues, especially in the early stages of the disease. In this report, we present a case of myositis ossificans affecting unilateral psoas muscle, which to our knowledge is a very uncommon location. There was no history of trauma. We describe the imaging findings and clues to early diagnosis of myositis ossificans.
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PMID:Myositis ossificans of psoas muscle: magnetic resonance imaging findings. 1551 14


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