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<meta name="DC.Title" content="Synovial Sarcomas of the Head and Neck: CT and MR Imaging Findings of Eight Patients" />
<meta name="DC.Date" content="2001-05-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="Copyright © American Society of Neuroradiology" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Synovial sarcomas are soft-tissue tumors that rarely occur in the head and neck. The purpose of this study was to evaluate their CT and MR imaging appearance and to show that they may have a surprisingly benign imaging appearance.

METHODS: Eight patients with histologically proved synovial sarcoma underwent CT ; additionally, MR imaging examinations were performed in five of the eight cases. Attenuation and signal intensity on CT scans and MR images, respectively, were studied by two radiologists. They analyzed the location, size, margins, homogeneity, presence of adenopathies and infiltrative signs, and enhancement after injection of contrast medium.

RESULTS: Four tumors were located in the hypopharynx, two arose from the infratemporal fossa, one arose from the maxillary sinus, and one arose from the faucial tonsil. Tumor sizes ranged from 27 to 70 mm. On CT scans and MR images, six lesions were homogeneous and well defined, with smooth margins. The remaining tumors were heterogeneous. In two cases, adjacent tissues were invaded. Calcifications were observed in one case and adenopathy in two cases. In three cases, the lesions were isointense on T1-weighted MR images and hypointense on T2-weighted MR images, and in the other two cases in which MR imaging was performed, the lesions were both isointense and hypointense on both T1- and T2-weighted images. Only the two local recurrent lesions were multilocular.

CONCLUSION: Synovial sarcomas are aggressive sarcomas that may appear “benign” in some cases. In a young man, a synovial sarcoma may be suspected when a well-demarcated, homogeneous lesion is found in the head and neck." />
<meta name="DC.Contributor" content="Anne-Sophie Rangheard" />
<meta name="DC.Contributor" content="Daniel Vanel" />
<meta name="DC.Contributor" content="Juliette Viala" />
<meta name="DC.Contributor" content="Guy Schwaab" />
<meta name="DC.Contributor" content="Odile Casiraghi" />
<meta name="DC.Contributor" content="Robert Sigal" />
<meta name="article:published_time" content="2001-05-01" />
<meta name="article:section" content="HEAD AND NECK" />
<meta name="citation_title" content="Synovial Sarcomas of the Head and Neck: CT and MR Imaging Findings of Eight Patients" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;i&gt;BACKGROUND AND PURPOSE:&lt;/i&gt; Synovial sarcomas are soft-tissue tumors that rarely occur in the head and neck. The purpose of this study was to evaluate their CT and MR imaging appearance and to show that they may have a surprisingly benign imaging appearance.&lt;/p&gt;&lt;p&gt;&lt;i&gt;METHODS:&lt;/i&gt; Eight patients with histologically proved synovial sarcoma underwent CT ; additionally, MR imaging examinations were performed in five of the eight cases. Attenuation and signal intensity on CT scans and MR images, respectively, were studied by two radiologists. They analyzed the location, size, margins, homogeneity, presence of adenopathies and infiltrative signs, and enhancement after injection of contrast medium.&lt;/p&gt;&lt;p&gt;&lt;i&gt;RESULTS:&lt;/i&gt; Four tumors were located in the hypopharynx, two arose from the infratemporal fossa, one arose from the maxillary sinus, and one arose from the faucial tonsil. Tumor sizes ranged from 27 to 70 mm. On CT scans and MR images, six lesions were homogeneous and well defined, with smooth margins. The remaining tumors were heterogeneous. In two cases, adjacent tissues were invaded. Calcifications were observed in one case and adenopathy in two cases. In three cases, the lesions were isointense on T1-weighted MR images and hypointense on T2-weighted MR images, and in the other two cases in which MR imaging was performed, the lesions were both isointense and hypointense on both T1- and T2-weighted images. Only the two local recurrent lesions were multilocular.&lt;/p&gt;&lt;p&gt;&lt;i&gt;CONCLUSION:&lt;/i&gt; Synovial sarcomas are aggressive sarcomas that may appear “benign” in some cases. In a young man, a synovial sarcoma may be suspected when a well-demarcated, homogeneous lesion is found in the head and neck.&lt;/p&gt;" />
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<meta name="citation_publication_date" content="2001/05/01" />
<meta name="citation_mjid" content="ajnr;22/5/851" />
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<meta name="citation_issn" content="0195-6108" />
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<meta name="citation_author" content="Anne-Sophie Rangheard" />
<meta name="citation_author" content="Daniel Vanel" />
<meta name="citation_author" content="Juliette Viala" />
<meta name="citation_author" content="Guy Schwaab" />
<meta name="citation_author" content="Odile Casiraghi" />
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<meta name="twitter:title" content="Synovial Sarcomas of the Head and Neck: CT and MR Imaging Findings of Eight Patients" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Synovial sarcomas are soft-tissue tumors that rarely occur in the head and neck. The purpose of this study was to evaluate their CT and MR imaging appearance and to show that they may have a surprisingly benign imaging appearance.

METHODS: Eight patients with histologically proved synovial sarcoma underwent CT ; additionally, MR imaging examinations were performed in five of the eight cases. Attenuation and signal intensity on CT scans and MR images, respectively, were studied by two radiologists. They analyzed the location, size, margins, homogeneity, presence of adenopathies and infiltrative signs, and enhancement after injection of contrast medium.

RESULTS: Four tumors were located in the hypopharynx, two arose from the infratemporal fossa, one arose from the maxillary sinus, and one arose from the faucial tonsil. Tumor sizes ranged from 27 to 70 mm. On CT scans and MR images, six lesions were homogeneous and well defined, with smooth margins. The remaining tumors were heterogeneous. In two cases, adjacent tissues were invaded. Calcifications were observed in one case and adenopathy in two cases. In three cases, the lesions were isointense on T1-weighted MR images and hypointense on T2-weighted MR images, and in the other two cases in which MR imaging was performed, the lesions were both isointense and hypointense on both T1- and T2-weighted images. Only the two local recurrent lesions were multilocular.

CONCLUSION: Synovial sarcomas are aggressive sarcomas that may appear “benign” in some cases. In a young man, a synovial sarcoma may be suspected when a well-demarcated, homogeneous lesion is found in the head and neck." />
<meta name="og-title" property="og:title" content="Synovial Sarcomas of the Head and Neck: CT and MR Imaging Findings of Eight Patients" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/22/5/851" />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Synovial sarcomas are soft-tissue tumors that rarely occur in the head and neck. The purpose of this study was to evaluate their CT and MR imaging appearance and to show that they may have a surprisingly benign imaging appearance.

METHODS: Eight patients with histologically proved synovial sarcoma underwent CT ; additionally, MR imaging examinations were performed in five of the eight cases. Attenuation and signal intensity on CT scans and MR images, respectively, were studied by two radiologists. They analyzed the location, size, margins, homogeneity, presence of adenopathies and infiltrative signs, and enhancement after injection of contrast medium.

RESULTS: Four tumors were located in the hypopharynx, two arose from the infratemporal fossa, one arose from the maxillary sinus, and one arose from the faucial tonsil. Tumor sizes ranged from 27 to 70 mm. On CT scans and MR images, six lesions were homogeneous and well defined, with smooth margins. The remaining tumors were heterogeneous. In two cases, adjacent tissues were invaded. Calcifications were observed in one case and adenopathy in two cases. In three cases, the lesions were isointense on T1-weighted MR images and hypointense on T2-weighted MR images, and in the other two cases in which MR imaging was performed, the lesions were both isointense and hypointense on both T1- and T2-weighted images. Only the two local recurrent lesions were multilocular.

CONCLUSION: Synovial sarcomas are aggressive sarcomas that may appear “benign” in some cases. In a young man, a synovial sarcoma may be suspected when a well-demarcated, homogeneous lesion is found in the head and neck." />
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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 22</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 5 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 May 2001 </div></div>
      
      
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      <div class="highwire-cite-title">Synovial Sarcomas of the Head and Neck: CT and MR Imaging Findings of Eight Patients</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">Anne-Sophie</span> <span class="nlm-surname">Rangheard</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Daniel</span> <span class="nlm-surname">Vanel</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Juliette</span> <span class="nlm-surname">Viala</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Guy</span> <span class="nlm-surname">Schwaab</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Odile</span> <span class="nlm-surname">Casiraghi</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Robert</span> <span class="nlm-surname">Sigal</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">May 2001, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">22 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">851-857; </span></div>
  
  
  
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      <div class="highwire-cite-title">Synovial Sarcomas of the Head and Neck: CT and MR Imaging Findings of Eight Patients</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">Anne-Sophie</span> <span class="nlm-surname">Rangheard</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Daniel</span> <span class="nlm-surname">Vanel</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Juliette</span> <span class="nlm-surname">Viala</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Guy</span> <span class="nlm-surname">Schwaab</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Odile</span> <span class="nlm-surname">Casiraghi</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Robert</span> <span class="nlm-surname">Sigal</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">May 2001, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">22 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">851-857; </span></div>
  
  
  
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