Most common nasopharyngeal benign tumor
Locally agressive
Invades pterygopalatine fossa
Anterior bowing of the posteior maxiallary wall is charactersitic
Arterial supply from internal or externalcarotid; per-op embolization is needed
40-50% recur, if skull base invasion present
CT:
Intensely enhance
MR:
Abundant flowvoids
Differentials:
Hypervascular polyp, rhabdomyosarcoma, germ cell tumor, carcinoma, lymphangioma, encephalocele (later 2 do not enahnce)
Reference:
Momeni et al. Imaging of Chronic and Exotic Sinonasal Disease: Review. AJR 2007; 189:S35-S45
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Head and Neck Imaging Notes
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Although I have taken care to make my blog posts as accurately as possible, the blog itself is not replacement for text-books and journals. The blogger does not accept any harm or injury related to the use of the material from this blog. All the images are from my collection and are not copyrighted; hence feel free to use them and I do not want any credit also. The notes are from the quoted journals and text-books, relevant to my practice. If anybody feels I am violating copyright, please let me know. I will delete the relevant data from my blog. I am greatly indebted to the reference book Som PM et al, Head and Neck Imaging. 4th edition. Mosby publications. Unless given the reference, the reference is most likely to this book.
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