tailieunhanh - báo cáo khoa học: "Contribution of magnetic resonance imaging in the diagnosis of talus skip metastases of Ewing’s sarcoma of the calcaneus in a child: 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: Contribution of magnetic resonance imaging in the diagnosis of talus skip metastases of Ewing’s sarcoma of the calcaneus in a child: a case report | Jalal et al. Journal of Medical Case Reports 2011 5 451 http content 5 1 451 JOURNALOF medical Ur Case REPORTS CASE REPORT Open Access Contribution of magnetic resonance imaging in the diagnosis of talus skip metastases of Ewing s sarcoma of the calcaneus in a child a case report 1 1 1 2 2 1 Hicham Jalal Zoubida Belhadj Hind Enneddam Mohammed Madhar Tarik Fikry Omar Essadki and Ahmed Ousehal1 Abstract Introduction Ewing s sarcoma of the calcaneus is rare. About thirty cases with calcaneus involvement have been reported in the literature. Talus skip metastases have rarely been described in the available literature Case presentation We report a case of a 14-year-old Moroccan boy who presented with Ewing s sarcoma of his right calcaneus diagnosed by swelling of the calcaneus evolving over a year. Radiography computed tomography and magnetic resonance imaging showed an important tumoral process of the calcaneus and talus skip metastases. The diagnosis was confirmed with histology after a biopsy. In spite of amputation and postoperative chemotherapy our patient died six months later due to secondary respiratory distress after lung metastasis. Conclusion Imaging especially magnetic resonance is important in the diagnosis of Ewing sarcoma and skeletal skip metastases. Treatment of Ewing s sarcoma consists of chemotherapy radiation therapy and surgical resection depending on the stage and extent of the disease. With the exception of lesions in the calcaneus the prognosis for disease-free survival of Ewing s sarcoma of the foot is excellent. Introduction Ewing s sarcoma is a rare malignant bone tumor that may affect any bone usually occurring in long bones pelvis and ribs with only 3-5 of cases in the bones of the hands and feet 1 . It is a highly anaplastic roundcell tumor primarily arising in the intramedullary portion of the bone. Case presentation A 14-year-old Moroccan boy presented with painful swelling of his right foot of 12 months .

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