PMC3139879_01
Chest X-ray of Case 1 at the presentation.
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fig1
Chest radiograph PA view showed a large homogenous opacity on right upper lobe, suggestive of a mass lesion (Figure 1).
FNAC from the lesion in Case 1 showing the small round blue cells (x400 magnification).
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fig2
Fine needle aspiration cytology (FNAC) from the mass lesion showed small blue round cells with monomorphous salt and pepper appearing chromatin and large and inconspicuous nuclei, suggestive of primitive neuroectodermal tumor:likely Askin's tumor (Figure 2).
Immunohistochemistry from the lesion showing CK and CD 99 positive in Case 1 (x400 magnification).
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fig3
Immunohistochemistry was strongly positive for CK and CD-99 and negative for LCA and CD-34 (Figure 3).
PMC3139879_02
Histopathlogical examination of the biopsy in Case 2 showing sheets of small round blue cells (x400 magnification).
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fig4
Biopsy of the lesion showed small round blue cells in sheets with ill-defined rosette-like structures, histomorphologically peripheral neuroectodermal tumor-possibly Askin's tumor (Figure 4).
Chest X ray postsurgery in Case 2.
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fig5
The chest radiograph PA view postsurgery is shown (Figure 5).