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Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying.

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Presentation on theme: "Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying."— Presentation transcript:

1 Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying stroma (long arrow) together with a fibrin deposit (thick arrow). Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying stroma (long arrow) together with a fibrin deposit (thick arrow). A.D. King et al. AJNR Am J Neuroradiol 2008;29: ©2008 by American Society of Neuroradiology

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