"Ewing sarcoma"
"Ewing sarcoma family of tumours"
"CNS tumour with BCOR internal tandem duplication"
"A number of tumours share similar histology, composed of relatively uniform primitive small round blue cells. They also share many demographic, radiographic and clinical similarities. Immunohistochemistry analysis, gene fusion studies and molecular studies can help differentiate these tumours 2,3. They include:"