Primary Ewing Sarcoma of Frontotemporal Bone in Geriatric Patient.

BACKGROUND: Ewing sarcoma is a rare primary malignant bone tumor, which mainly affects children and adolescents. Calvarial bone involvement and its appearance in elderly patients are extremely rare. CASE DESCRIPTION: We presented a 68-year-old female patient with headache and right frontotemporal swelling. Imaging studies showed a right frontotemporal mass expanding to the Sylvian fissure. The patient underwent total resection of the mass, and pathologic evaluation ensured the diagnosis of primary Ewing sarcoma. The patient had adjuvant radiotherapy and chemotherapy after surgery. CONCLUSIONS: Prognosis and efficiency of treatment for primary Ewing sarcoma of skull are unclear in elderly patients because of the sarcoma's rare appearance. Therefore more clinical evaluation is necessary. This case is the oldest patient presented in the literature.

Primary Tumor and Tumor-Like Lesions of Bones of the Foot: Single-Center Experience of 166 Cases.

Primary bone tumors of the foot are rare lesions. The purpose of the present study was to evaluate the clinical manifestations, treatment modalities, and recurrences of various primary bone tumors of the foot from a specialized center for orthopedic oncology. Among 3681 musculoskeletal tumor cases, which were diagnosed and surgically treated in our hospital from 1983 to 2013, 166 primary tumor and tumor-like bone lesions of the foot (4.5%) were retrospectively reviewed regarding age, gender, localization, biopsy-revealed diagnosis, applied treatment modalities, follow-up period, and recurrence, if any. Of the 166 primary bone tumors of the foot, 155 (93.4%) were benign and 11 (6.6%) were malignant. The most common primary benign bone tumor was a unicameral bone cyst (57 of 155; 36.8%), and the most common malignant tumor was chondrosarcoma (7 of 11; 63.6%). The hindfoot was the most common location for both primary benign (104 of 155; 67.1%) and malignant (6 of 11; 54.5%) bone tumors of the foot. The results of our study have confirmed that the radiologic findings can be confusing owing to the structural and histopathologic features of the bones of the foot; thus, histopathologic diagnosis should be considered for foot involvement. Because the characteristics of the compartments in the foot allow for the rapid spread of malignant lesions, aggressive surgical management and wider resection are recommended to prevent recurrence and further spread.