Vocal Cord Paralysis: Review of Imaging Appearance and Etiologies

Schneider, A.J.; Winegar, B.A.; Altmeyer, W.; Tantiwongkosi, B.Schneider, A.J.; Winegar, B.A.; Altmeyer, W.; Tantiwongkosi, B.

View Article on Neurographics Website

Date of Activity Release: Apr. 1, 2017
Date of Activity Expiration: Apr. 1, 2020

Target Audience:
Intended for neuroradiologists and neuroradiology trainees with varying degrees of experience.

Learning Objectives:
Discuss the imaging evaluation of vocal cord paralysis, describe relevant anatomy, and list common causative etiologies.

Vocal cord paralysis is often demonstrated as subtle imaging findings that can easily be overlooked and may be unexpected because a significant number of patients are asymptomatic. A wide range of pathology that involve the vagus or recurrent laryngeal nerves can result in vocal cord paralysis by disrupting motor innervation of the larynx. The detection of vocal cord paralysis should not serve as a final diagnosis but rather as an indication to investigate for a causative etiology because paresis may be a harbinger of more serious underlying disease. Thus, a strong grasp of pertinent anatomy, classic imaging findings, and common underlying pathologies of vocal cord paralysis is paramount for the interpreting radiologist.

Commercial Support
No commercial support was received for this activity.

Credit Designation Statement

The American Society of Neuroradiology is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The American Society of Neuroradiology designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 Credit(s)TM. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Method of Physician Participation:
Each participant will review the corresponding Neurographics article located at Upon completion, each physician will complete and pass a post-test with a score of at least 80% to receive a CME certificate.

All individuals in control of content have disclosed the following relevant financial relationships. All of these relationships were treated as a conflict of interest, and have been resolved (C7 SCS 6.1-6.2, 6.5)

Authors have no relevant financial relationships.





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