Primary Ewing's sarcoma/peripheral primitive neuroectodermal tumor at the vertex of the skull with elevated serum carcinoembryonic antigen : case report

A primary Ewing's sarcoma arising in the skull is relatively rare. Although a small number of case reports noted elevated carcinoembryonic antigen (CEA) in patients with primary central nervous system (CNS) neoplasms, there is no report of Ewing's sarcoma/peripheral primitive neuroectoderm...

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