TUMORES ÓSSEOS RAROS DA CALOTA CRANIANA: SARCOMA TUMORES ÓSSEOS RAROS DA CALOTA CRANIANA: SARCOMA TUMORES ÓSSEOS RAROS DA CALOTA CRANIANA: SARCOMA TUMORES ÓSSEOS RAROS DA CALOTA CRANIANA: SARCOMA TUMORES ÓSSEOS RAROS DA CALOTA CRANIANA: SARCOMA DE EWING E TUMOR DE TRITON* DE EWING E TUMOR DE TRITON* DE EWING E TUMOR DE TRITON* DE EWING E TUMOR DE TRITON*

Uncommon bone tumors of the skull: Ewing’s sarcoma and Triton’s tumor. Ewing’s sarcoma and Triton’s tumor are two uncommon bone tumors of the skull that have nonspecific clinical and imaging features. However, imaging methods are important in the detection of the lesions during the diagnostic investigation in order to evaluate the extent of the bone lesions, involvement of soft tissues and brain, and to determine the presence of local recurrence and metastases. The confirmatory diagnosis relies on histological studies and immunohistochemistry. The authors report two cases of patients with these tumors and present the radiological findings.