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

• Published in: Journal of medical case reports 2011-09, Vol.5 (1), p.451-451, Article 451
• Main Authors: Jalal, Hicham, Belhadj, Zoubida, Enneddam, Hind, Madhar, Mohammed, Fikry, Tarik, Essadki, Omar, Ousehal, Ahmed
• Format: Article
• Language: English
• Subjects: Case Report; Case studies; Children; Diagnosis; Diseases; Ewing's sarcoma; Magnetic resonance imaging; Metastasis
• ISSN: 1752-1947; 1752-1947
• DOI: 10.1186/1752-1947-5-451

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 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. 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.