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Article

J Korean Dysphagia Soc 2013; 3(1): 32-35

Published online January 1, 2013

© The Korean Dysphagia Society.

Delayed Onset Severe Dysphagia Due to Radiation Neuropathy -A Case Report-

Chan-Hyuk Kwon, M.D., Il-Young Jung, M.D.1, Tai Ryoon Han, M.D.

Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, 1Yesan County Health Center, Chungnam, Korea

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A 37-year-old man visited outpatient clinic complaining of swallowing difficulty with weight loss. Twelve years ago,
he received concurrent chemoradiotherapy on nasopharynx and neck due to nasopharyngeal cancer. There was no
evidence of recent cancer recurrence in several imaging studies. Electromyography (EMG) demonstrated myokymic
discharges in the cricothyroid, geniohyoid and genioglossus muscles. These findings suggested a delayed onset radiation-
induced multiple cranial neuropathies. A videofluoroscopic swallowing study (VFSS) revealed severe oropharyngeal
dysphagia and oroesophageal tube feeding was started. He has been followed up for 1 month but there has
been no significant improvement in swallowing function in VFSS. Nevertheless he benefited from using appropriate
maneuvers with VFSS and obtained proper nutrition. In this case, performing a VFSS was critical in making a proper
clinical decision. A VFSS, in addition to EMG, might be considered as one of the essential tests in patients who
went through concurrent chemoradiotherapy (CCRT) for nasopharyngeal cancer.

Keywords: Deglutition disorders, Dysphagia, Radiation neuropathy, Nasopharyngeal neoplasm, Concurrent chemoradiotherapy

Article

J Korean Dysphagia Soc 2013; 3(1): 32-35

Published online January 1, 2013

Copyright © The Korean Dysphagia Society.

Delayed Onset Severe Dysphagia Due to Radiation Neuropathy -A Case Report-

Chan-Hyuk Kwon, M.D., Il-Young Jung, M.D.1, Tai Ryoon Han, M.D.

Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul, 1Yesan County Health Center, Chungnam, Korea

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A 37-year-old man visited outpatient clinic complaining of swallowing difficulty with weight loss. Twelve years ago,
he received concurrent chemoradiotherapy on nasopharynx and neck due to nasopharyngeal cancer. There was no
evidence of recent cancer recurrence in several imaging studies. Electromyography (EMG) demonstrated myokymic
discharges in the cricothyroid, geniohyoid and genioglossus muscles. These findings suggested a delayed onset radiation-
induced multiple cranial neuropathies. A videofluoroscopic swallowing study (VFSS) revealed severe oropharyngeal
dysphagia and oroesophageal tube feeding was started. He has been followed up for 1 month but there has
been no significant improvement in swallowing function in VFSS. Nevertheless he benefited from using appropriate
maneuvers with VFSS and obtained proper nutrition. In this case, performing a VFSS was critical in making a proper
clinical decision. A VFSS, in addition to EMG, might be considered as one of the essential tests in patients who
went through concurrent chemoradiotherapy (CCRT) for nasopharyngeal cancer.

Keywords: Deglutition disorders, Dysphagia, Radiation neuropathy, Nasopharyngeal neoplasm, Concurrent chemoradiotherapy

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