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REGIONAL
EXTENSION
Now viewing: Case
17
Case 17 - Squamous cell carcinoma of posterolateral wall of
nasopharynx with extension to mandibular division of trigeminal and greater superficial
petrosal nerves
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| Biopsy of the tumor mass revealed squamous cell
carcinoma. Patient was treated with chemotherapy and radiation therapy. |
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| Axial CT scan with IV contrast medium through the upper
nasopharynx: soft tissue tumor mass involving the right posterolateral wall of the
nasopharynx with obliteration of the torus tubarius and fossa of Rosenmuller (1) and
extension to the right parapharyngeal space (2). |
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Axial CT scan with IV contrast medium at the level of the
base of the skull (bone window): destructive lesion involving the right side of the
clivus, right foramen lacerum, petrous apex, and the medial aspect of the right foramen
oval. (1). There is widening of the right pterygopalatine fossa (2), right pterygoid canal
(3), and increased density of the right pterygoid plate from tumor extension (4). |
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Coronal CT at the level of the foramen ovale
- a large soft tissue mass involving the right side of the nasopharynx with extension to
the right base of the skull (1). There is a tumor mass extending upward with destruction
of the foramen ovale and possible involvement of V3 (2). |
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Coronal T1-weighted MR image
(TR 800/TE 25) at the level of
the foramen ovale: a large tissue mass with low to intermediate signal intensity involving
the right side of the roof and right lateral wall of the nasopharynx (1) with extension to
the right parapharyngeal space displacing the medial pterygoid muscle slightly laterally
(2) . There is extension of the lesion superolaterally to the region of the foramen
ovale)
with involvement of V3 (3). There is also superior extension of the lesion with
destruction of the right basisphennoid and right pterygoid canal and perineural extension
of the greater superficial petrosal nerve (4).
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The Levit Radiologic - Pathologic Institute
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Last updated;
February 2002 - contact Webmaster
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©2002
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