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Volume 6, Issue 3 , Pages 153-155 , September 2011

Primary paranasal sinus meningioma of a 1.7-year-old boy

Received 16 May 2010 ,Accepted 19 June 2010.

(A) axial CT and (B) coronal preoperative CT image.

(A) axial CT and (B) coronal preoperative CT image.
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The tumor was composed of a mixed population of immature bone trabecula surrounded by abundant polygonal to spindled tumor cells (HE 100×).

The tumor was composed of a mixed population of immature bone trabecula surrounded by abundant polygonal to spindled tumor cells (HE 100×).
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The tumor exhibited a meningotheliomatous pattern (HE 400×).

The tumor exhibited a meningotheliomatous pattern (HE 400×).
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Immunohistochemical staining for vimentin was positive (IHC 400×).

Immunohistochemical staining for vimentin was positive (IHC 400×).
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Immunohistochemical staining for EMA was positive (IHC 200×).

Immunohistochemical staining for EMA was positive (IHC 200×).
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Postoperative CT scan.

Postoperative CT scan.
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