Ewing sarcoma is a rare primary neoplasm of bone representing approximately 6-8% all malignant tumours. Because its aggressive clinical behaviour and rapid dissemination to other sites, an early accurate diagnosis utmost importance. It shares morphological features with round cell tumors. Common differentials include lymphoblastic lymphoma, neuroblastoma, rhabdomyosarcoma neuroendocrine Due the...

CONTEXT Despite several publications attesting to its accuracy and value, cytology is rarely used for preliminary autopsy diagnosis in the United States. Postmortem cytodiagnosis has the potential to increase the accuracy and specificity of the provisional and final autopsy diagnoses, increase resident interest in cytodiagnostic techniques, and direct pathologists to request pertinent special s...