FLI1 and Ewing sarcoma: An analysis of 4323 tumours revealed that FLI-1 was highly expressed in 46/62 Ewing’s sarcoma/primitive neuroectodermal tumours, 2/3 olfactory neuroblastomas, 7/102 small cell carcinomas of the lung, 10/34 Merkel cell carcinomas, 19/132 non-Hodgkin’s lymphomas, 9/29 medullar carcinomas of the breast, 2/3 desmoplastic small round cell tumours, and 53/74 benign and malignant vascular tumours [72].