Case Reports in Radiology / 2014 / Article / Fig 5

Case Report

Ewing Sarcoma of the Kidney: A Rare Entity

Figure 5

(a) A Diff-Quick stained, air-dried direct smear of Ewing’s sarcoma shows a monotonous population of tumor cells with high nuclear: cytoplasmic ratio. Scattered apoptotic cells in the background give an appearance of “double population.” (b) Pap-stained, Alcohol fixed direct smear of Ewing’s/PNET shows a malignant small round cell tumor, singly and in loosely cohesive clusters. Numerous apoptotic cells are present. The tumor cells demonstrate mild to moderate nuclear pleomorphism, irregular nuclear contour with fine chromatin, and inconspicuous nucleoli. (c) Pap-stained, alcohol fixed direct smear of Ewing’s/PNET shows a malignant small round cell tumor, singly and in loosly cohesive clusters. Numerous apoptotic cells are present. The tumor cells demonstrate mild to moderate nuclear pleomorphism, irregular nuclear contour with fine chromatin, and inconspicuous nucleoli.
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