Cutaneous Extraskeletal Ewing's Sarcoma / 대한피부과학회지

ABSTRACT

Extraskeletal Ewing's sarcoma is an extremely rare malignant soft tissue tumor, which presents the exact same histopathologic features with Ewing's sarcoma of bone. Tumor composed of small, blue, round cells with vesicular nuclei and scant cytoplasm is the characteristic histopathology of the disease. Extraskeletal Ewing's sarcoma is known to occur usually in the deep soft tissues of the extremities. We report a case of 22-year-old boy with solitary extraskeletal Ewing's sarcoma on his back without any evidence of bone involvement. The patient went through wide excision with meticulous lymph node dissection followed by chemotherapy. For the 15 months of follow up, there is not a sign of recurrence or metastasis observed.