Primary Cervical Extraosseous Ewing’s Sarcoma Originated from the Sternocleidomastoid Muscle: A Case Report and Review of the Literature

<div>Microscopic appearance of the samples. Tumor cells showed strong and diffuse positive staining for CD99 (a), FLI (b) and vimentin (c). Magnification ×40.</div>

Case Reports in Otolaryngology

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Figure 4: Primary Cervical Extraosseous Ewing’s Sarcoma Originated from the Sternocleidomastoid Muscle: A Case Report and Review of the Literature 