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A twelve-year-old male with a diagnosis of Ewing sarcoma in the pelvic region (a). Axial (b) and coronal (c) magnetic resonance images at diagnosis. Type II-III internal hemipelvectomy and reconstruction with alloprosthetic composite were performed (d). After 62 months, severe allograft resorption and purulent drainage were detected in the surgical site (e). External hemipelvectomy was performed for the recalcitrant infection. The patient was dead because of sepsis in the 71st month.
