Abstract
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 neuroectodermal tumor (PNET) with elevated serum levels of CEA. A 7-year-old boy who had episodes of headache and vomiting had noticed a solid mass in the vertex of the head. Imaging studies revealed a large intra- and extracranial tumor at the vertex of the skull. Hematological examination demonstrated high serum levels of CEA: 91.09 ng/ml. The patient initially underwent an embolization of the bilateral middle meningeal arteries with Gelfoam particles. One week later, the patient was operated on and a subtotal resection of the tumor was performed. On histopathological and molecular genetic examination, the tumor was diagnosed as a Ewing's sarcoma/peripheral PNET. Immunohistochemical study showed strongly positive staining for CEA in the tumor cells. The serum level of CEA was normalized at 0.83 ng/ml after the tumor was removed and the boy underwent radiotherapy and 3 courses of chemotherapy. This is the first reported case of a primary Ewing's sarcoma/peripheral PNET at the vertex of the skull with elevated serum CEA.
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Tamiya, T., Ono, Y., Daido, S. et al. Primary Ewing's Sarcoma/peripheral Primitive Neuroectodermal Tumor at the Vertex of the Skull with Elevated Serum Carcinoembryonic Antigen: Case Report. J Neurooncol 52, 173–180 (2001). https://doi.org/10.1023/A:1010676521149
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DOI: https://doi.org/10.1023/A:1010676521149