Fig. 2From: Primary pulmonary Ewing’s sarcoma: rare cause of massive hemothorax in a young girl-case reportHistopathological images of a pleomorphic cells with narrow cytoplasm and hyperchromatic nuclei, b membranous immunoreactivity with CD99, c cytoplasmic immunoreactivity with vimentin, d membranous and cytoplasmic immunoreactivity with CD56, e > 70% positivity for Ki-67 and f negativity for AE1/AE3Back to article page