Document Detail

MR imaging of nasal masses.
MedLine Citation:
PMID:  8577959     Owner:  NLM     Status:  MEDLINE    
Magnetic resonance (MR) imaging is useful in evaluating the wide spectrum of diseases that cause nasal masses. MR imaging is most helpful in (a) defining tumor margins and possible intracranial extension and (b) differentiating tumor (which has intermediate, heterogeneous signal intensity on T2-weighted images) from concurrent postobstructive sinusitis and other infectious or inflammatory masses (which have high, homogeneous signal intensity on T2-weighted images if the secretions are well hydrated). The analysis becomes more complicated in cases with desiccated and mixed composition secretions. MR imaging also allows characterization of very vascular tumors, which show flow voids or marked enhancement. Low signal intensity on T1-weighted images and marked low signal intensity on T2-weighted images are characteristic of fungal sinusitis, and fat within a nasal mass indicates a dermoid or epidermoid cyst. Idiopathic midline granuloma, Wegener granulomatosis, and "cocaine nose" manifest as predominantly destructive midline masses. Despite the advantages of MR imaging, computed tomography remains the preferred imaging modality for evaluating nasal masses that contain calcification or originate from bone or cartilage.
S M Allbery; G Chaljub; N L Cho; C H Rassekh; S D John; F C Guinto
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Radiographics : a review publication of the Radiological Society of North America, Inc     Volume:  15     ISSN:  0271-5333     ISO Abbreviation:  Radiographics     Publication Date:  1995 Nov 
Date Detail:
Created Date:  1996-03-14     Completed Date:  1996-03-14     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8302501     Medline TA:  Radiographics     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1311-27     Citation Subset:  IM    
Department of Radiology, University of Texas Medical Branch, Galveston 77550-0465, USA.
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MeSH Terms
Diagnosis, Differential
Magnetic Resonance Imaging*
Nose Diseases / diagnosis*
Nose Neoplasms / diagnosis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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