Abstract
Ewing Sarcoma of the calcaneus is a very rare presentation of the tumor. In this case report, we present a 9 year old Hispanic male who presented with a limp in the right ankle, thought to be secondary to a football injury. We also discuss treatment options and various presentations of the tumor.
Highlights
Malignant tumors of the bone in the foot and ankle are an extreme rarity [1]
The tumor has a very low predilection for dissemination to regional lymph nodes, and it is not known to metastasize to adjacent bones 2]
In the Dahlin and Unni publication covering 8,542 tumors of the bone, less than 1.2% were in the distal extremities [2]
Summary
Malignant tumors of the bone in the foot and ankle are an extreme rarity [1]. We present the case of a 9-year-old Hispanic male patient with a nonmetastatic Ewing sarcoma of the ankle with a history of ankle sprains. He presented to the clinic with right ankle pain due to sporting activities. To the authors' knowledge, ankle sprains are a highly uncommon presentation of Ewing Sarcoma, and by discussing the case's unique presentation, we hope to bring awareness to various ES presentations that may aid diagnosis. There was focal increased uptake in the right calcaneal region and right mid foot consistent with the patient's history of right calcaneus malignancy. A prosthesis was placed, and the patient showed good ambulation seven months after the end of chemotherapy
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