A 14-year-old girl from Delhi presents with a 2-month history of pain and swelling in the proximal tibia. MRI shows a lesion with marked soft tissue extension and bone marrow edema. Biopsy reveals small round blue cells with t(11;22) translocation. Which feature best distinguishes this Ewing sarcoma from Ewing-like tumors (primitive neuroectodermal tumor, PNET)?

See the options, answer & explanation

Sign in free to reveal the answer choices, the correct answer, the detailed explanation, and AI-powered insights for this question.