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REGIONAL EXTENSION

Now viewing: Case 18

Case 18- Lymphoepithelioma of the nasopharynx with extensive extension to maxillary and mandibular divisions of trigeminal and hypoglossal nerves

Biopsy of the tumor mass of the nasopharynx revealed lymphoepithelioma. Patient was treated with chemotherapy and followed with radiation therapy.
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Axial CT scan with IV contrast medium at the level of the upper nasopharynx: there is a large soft tissue tumor involving the posterior and left lateral walls of the nasopharynx with lateral and posterior extension (arrows). Axial CT scan with IV contrast medium at the level of the base of the skull (bone window): there is extensive destruction of the clivus, foramen lacerum, carotid canal, foramen ovale, and petrous pyramid on the left side (1). There is also involvement of the posterior wall of the left sphenoid sinus (2). There is normal appearance of the base of the skull on the right side.

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Axial CT scan with IV contrast medium at the level of the foramen magnum: there is partial destruction of the left occipital condyle including the hypoglossal canal (arrows).

Coronal CT scan with IV contrast medium at the level of the body of the sphenoid bone: tumor mass is extended superiorly to the left cavernous sinus with involvement of the gasserian ganglion and laterally to the left foramen ovale (arrows). The right foramen ovale and cavernous sinus are normal in appearance.

 

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