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Published online before print February 28, 2006, 10.1148/radiol.2391042176
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Sclerosis of the Pterygoid Process in Untreated Patients with Nasopharyngeal Carcinoma1

Deborah R. Shatzkes, MD, Daniel E. Meltzer, MD, Jane A. Lee, MD, James S. Babb, PhD, Nicholas J. Sanfilippo, MD and Roy A. Holliday, MD2

1 From the Department of Radiology, New York University Medical Center, New York, NY. From the 2004 RSNA Annual Meeting. Received December 22, 2004; revision requested February 23, 2005; revision received April 1; accepted April 25; final version accepted June 17. Address correspondence to D.R.S., Department of Radiology, St Lukes-Roosevelt Hospital Center, 1000 Tenth Ave, New York, NY 10019 (e-mail: DShatzkes{at}chpnet.org).


Figure 1
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  		Figure 1a: Transverse bone window CT images obtained in two patients with nasopharyngeal carcinoma—(a) a 27-year-old man and (b) a 44-year-old man—show pterygoid process sclerosis (white arrow). Note the ipsilateral mastoid effusion (black arrow) in b.

 

Figure 1
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  		Figure 1b: Transverse bone window CT images obtained in two patients with nasopharyngeal carcinoma—(a) a 27-year-old man and (b) a 44-year-old man—show pterygoid process sclerosis (white arrow). Note the ipsilateral mastoid effusion (black arrow) in b.

 

Figure 2
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  		Figure 2: Transverse bone window CT image obtained in a 43-year-old man with nasopharyngeal carcinoma shows erosion (arrow) and sclerosis of the pterygoid process.

 

Figure 3
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  		Figure 3: Transverse soft-tissue window CT image obtained in a 31-year-old woman with nasopharyngeal carcinoma shows clear invasion of the parapharyngeal space, as evidenced by enhancing tumor that is inseparable from the pterygoid musculature (arrow).

 

Figure 4
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  		Figure 4: Transverse soft-tissue window CT image obtained in a 57-year-old man with nasopharyngeal carcinoma shows nodular tumor (arrow) abutting the left pterygoid process.

 

Figure 5
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  		Figure 5: Schematic illustration of the relevant transverse anatomy of the suprapalatine parapharyngeal space. The heavy black outline indicates the position of the pharyngobasilar fascia. The cross-hatched areas are muscles.

 




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