tailieunhanh - Báo cáo y học: "Non-traumatic myositis ossificans mimicking a malignant neoplasm in an 83-year-old woman: a case report"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Non-traumatic myositis ossificans mimicking a malignant neoplasm in an 83-year-old woman: a case report. | Nishio et al. Journal of Medical Case Reports 2010 4 270 http content 4 1 270 jAg JOURNALOF medical ÌỤr case REPORTS CASE REPORT Open Access Non-traumatic myositis ossificans mimicking a malignant neoplasm in an 83-year-old woman a case report Jun Nishio1 Kazuki Nabeshima2 Hiroshi Iwasaki2 Masatoshi Naito1 Abstract Introduction Myositis ossificans is a benign self-limiting condition that usually affects young athletically active men. To the best of our knowledge this case report describes the oldest recorded patient with myositis ossificans. Case presentation Our patient was an 83-year-old Japanese woman who presented with a one week history of a palpable mass in the left thigh. She had a history of surgery for transverse colon cancer and lung cancer at the ages of 73 and 80 respectively. Clinical and radiological examinations suggested a malignant neoplasm such as metastatic carcinoma or extraskeletal osteosarcoma. A diagnosis of myositis ossificans was made by core needle biopsy. Our patient was asymptomatic and had no recurrence at one year follow-up. Conclusion Clinicians should consider myositis ossificans as a possible diagnosis for a soft tissue mass in the limb of an older patient thereby avoiding unnecessarily aggressive therapy. Introduction Myositis ossificans MO is a benign lesion of heterotopic ossification that chiefly affects active adolescents and young adults with a slight male predominance. Any part of the body may be involved but the anterior thigh is the most common site. This lesion is clearly related to trauma in 60 to 75 of cases 1 . Despite a clinically and histologically distinct entity MO still causes considerable difficulties in diagnosis. We report a case of MO arising in the thigh of an older patient without any history of trauma. Case presentation An 83-year-old Japanese woman was referred to our hospital with a one week history of a palpable mass in the anteriomedial aspect of the left thigh. There was no .

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