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    More articles from Head & Neck
  

  
  

			
		
	
	
 	
	  
  
		
		
			
			  
  
      
  
  
    
  
  
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      Prediction of Human Papillomavirus Status and Overall Survival in Patients with Untreated Oropharyngeal Squamous Cell Carcinoma: Development and Validation of CT-Based Radiomics  
    	Y. Choi, Y. Nam, J. Jang, N.-Y. Shin, K.-J. Ahn, B.-S. Kim, Y.-S. Lee and M.-S. Kim
  
    	American Journal of Neuroradiology October 2020, 41 (10) 1897-1904; DOI: https://doi.org/10.3174/ajnr.A6756 
  
  
  


  
  
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      Anosmia in COVID-19 Associated with Injury to the Olfactory Bulbs Evident on MRI  
    	M.F.V.V. Aragão, M.C. Leal, O.Q. Cartaxo Filho, T.M. Fonseca and M.M. Valença
  
    	American Journal of Neuroradiology September 2020, 41 (9) 1703-1706; DOI: https://doi.org/10.3174/ajnr.A6675 
  
  
  


  
  
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      A Simple Formula to Estimate Parathyroid Weight on 4D-CT, Predict Pathologic Weight, and Diagnose Parathyroid Adenoma in Patients with Primary Hyperparathyroidism  
    	R. Yeh, Y.-K.D. Tay, L. Dercle, L. Bandeira, M.R. Parekh and J.P. Bilezikian
  
    	American Journal of Neuroradiology September 2020, 41 (9) 1690-1697; DOI: https://doi.org/10.3174/ajnr.A6687 
  
  
  


  
  
      Head & Neck 
  
      Open Access
  
      COVID-19–Associated Bifacial Weakness with Paresthesia Subtype of Guillain-Barré Syndrome  
    	K.L. Hutchins, J.H. Jansen, A.D. Comer, R.V. Scheer, G.S. Zahn, A.E. Capps, L.M. Weaver and N.A. Koontz
  
    	American Journal of Neuroradiology September 2020, 41 (9) 1707-1711; DOI: https://doi.org/10.3174/ajnr.A6654 
  
  
  


  
  
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      Diagnostic Accuracy of MRI-Based Morphometric Parameters for Detecting Olfactory Nerve Dysfunction  
    	M.K. Lee, J.H. Lee, J.H. Kim, H. Kim, L. Joo, M. Kim, S.J. Cho, C.H. Suh, S.R. Chung, Y.J. Choi and J.H. Baek
  
    	American Journal of Neuroradiology September 2020, 41 (9) 1698-1702; DOI: https://doi.org/10.3174/ajnr.A6697 
  
  
  


  
  
      FELLOWS' JOURNAL CLUBHead & Neck 
  
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      MRI Findings of Immune Checkpoint Inhibitor–Induced Hypophysitis: Possible Association with Fibrosis  
    	R. Kurokawa, Y. Ota, W. Gonoi, A. Hagiwara, M. Kurokawa, H. Mori, E. Maeda, S. Amemiya, Y. Usui, N. Sato, Y. Nakata, T. Moritani and O. Abe
  
    	American Journal of Neuroradiology September 2020, 41 (9) 1683-1689; DOI: https://doi.org/10.3174/ajnr.A6692 
  
    	This retrospective international multicenter study comprised 20 patients with melanoma who were being treated with immune checkpoint inhibitors and clinically diagnosed with immune checkpoint inhibitor–induced hypophysitis. Three radiologists evaluated the following MR imaging findings: enlargement of the pituitary gland and stalk; homogeneity of enhancement of the pituitary gland; presence/absence of a well-defined poorly enhanced area and, if present, its location, shape, and signal intensity in T2WI; and enhancement pattern in contrast-enhanced dynamic MR imaging. Enlargement of the pituitary gland and stalk was observed in 12 and 20 patients, respectively. Nineteen patients showed poorly enhanced lesions (geographic hypoenhancing lesions) in the anterior lobe, and 11 of these lesions showed hypointensity on T2WI. Thyrotropin deficiency and corticotropin deficiency were observed in 19/20 and 12/17 patients, respectively. The authors conclude that pituitary geographic hypoenhancing lesions in the anterior lobe of the pituitary gland are characteristic and frequent MR imaging findings of immune checkpoint inhibitor–induced hypophysitis.
  
  


  
  
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      Indentation and Transverse Diameter of the Meckel Cave: Imaging Markers to Diagnose Idiopathic Intracranial Hypertension  
    	A. Kamali, K.C. Sullivan, F. Rahmani, A. Gandhi, A. Aein, O. Arevalo, P. Rabiei, S.J. Choi, X. Zhang, R.E. Gabr and R.F. Riascos
  
    	American Journal of Neuroradiology August 2020, 41 (8) 1487-1494; DOI: https://doi.org/10.3174/ajnr.A6682 
  
    	The purpose of this study was to investigate whether the shape (bilobed or indented appearance of the Meckel cave) or the size/volume of the Meckel cave on T2-weighted MRI could serve as a noninvasive diagnostic imaging marker for the diagnosis of idiopathic intracranial hypertension. The authors studied 75 patients with a diagnosis of IIH and 75 age-and sex-matched healthy controls. The transverse diameter of the Meckel cave was measured in the axial and coronal planes of T2-weighted MRI, and comparison was made between the 2 groups. Of 75 patients with an approved diagnosis of IIH, 57 (76%) showed an indented Meckel cave as opposed to 21 (28%) in the control group. They conclude that the shape and size of the Meckel cave can be used as sensitive and specific diagnostic imaging markers for the diagnosis of IIH.
  
  


  
  
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      Pretreatment DWI with Histogram Analysis of the ADC in Predicting the Outcome of Advanced Oropharyngeal Cancer with Known Human Papillomavirus Status Treated with Chemoradiation  
    	M. Ravanelli, A. Grammatica, M. Maddalo, M. Ramanzin, G.M. Agazzi, E. Tononcelli, S. Battocchio, P. Bossi, M. Vezzoli, R. Maroldi and D. Farina
  
    	American Journal of Neuroradiology August 2020, 41 (8) 1473-1479; DOI: https://doi.org/10.3174/ajnr.A6695 
  
  
  


  
  
      Head & Neck 
  
      Open Access
  
      Non-EPI-DWI for Detection, Disease Monitoring, and Clinical Decision-Making in Thyroid Eye Disease  
    	C. Feeney, R.K. Lingam, V. Lee, F. Rahman and S. Nagendran
  
    	American Journal of Neuroradiology August 2020, 41 (8) 1466-1472; DOI: https://doi.org/10.3174/ajnr.A6664 
  
  
  


  
  
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      Multishell Diffusion MRI–Based Tractography of the Facial Nerve in Vestibular Schwannoma  
    	M. Castellaro, M. Moretto, V. Baro, S. Brigadoi, E. Zanoletti, M. Anglani, L. Denaro, R. Dell’Acqua, A. Landi, F. Causin, D. d’Avella and A. Bertoldo
  
    	American Journal of Neuroradiology August 2020, 41 (8) 1480-1486; DOI: https://doi.org/10.3174/ajnr.A6706 
  
  
  

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Print ISSN: 0195-6108 Online ISSN: 1936-959X