(A) Axial T1-weighted image in a 55-year-old woman with left facial pain and pressure demonstrates a soft tissue mass (white arrowheads) centered in the.

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Copyright © 2002 American Medical Association. All rights reserved.
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Copyright © 2013 American Medical Association. All rights reserved.
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(A) Axial T1-weighted image in a 55-year-old woman with left facial pain and pressure demonstrates a soft tissue mass (white arrowheads) centered in the left maxillary sinus and extending posteriorly through the back wall of the sinus into the retroantral fat (black arrows) and pterygopalatine fossa. The normal retroantral fat (RAF) and pterygopalatine fossa (PPF) are indicated on the patient's right side. In addition, there is sclerosis of the pterygoid body and plates (P) related to tumor infiltration. Anteriorly, within the left maxillary sinus, mixed signal intensity material is consistent with inspissated proteinaceous material due to sinus obstruction. (B) Postgadolinium, an axial Tl-weighted image with fat saturation demonstrates enhancement of the lesion and its posterior extension into the adjacent fat and bone. More anteriorly in the maxillary sinus, inspissated proteinaceous material (**) does not enhance. Invasive squamous cell carcinoma was confirmed surgically. Source: Chapter 3. Radiology, CURRENT Diagnosis & Treatment in Otolaryngology—Head & Neck Surgery, 3e Citation: Lalwani AK. CURRENT Diagnosis & Treatment in Otolaryngology—Head & Neck Surgery, 3e; 2012 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/lalw3/lalw3_c003f120a.png&sec=39945182&BookID=386&ChapterSecID=39944034&imagename= Accessed: October 27, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved

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