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J Korean Assoc EMG Electrodiagn Med 2014;16(2):103-107.
Published online December 31, 2014.
A Case with Myopathy Involving the Pharynx as well as Proximal Limb Muscles Associated with Corticosteroid Abuse
Received: 14 October 2014   • Revised: 28 October 2014   • Accepted: 28 October 2014
We report a patient who developed dysphagia related to myopathyafter corticosteroid abuse. A 62-year-old male patient was referred to the outpatient department of rehabilitation with a persistent swallowing difficulty. The patient complained of swallowing difficulty, such as pharyngolaryngeal weakness, residual sense,and aspiration after swallowing. A videofluoroscopic swallowing study revealed a large amount of residue in the vallecular pouch and piriform sinus. Laryngeal penetrations and nasal penetration were found in all the swallowing materials. Further detailed history taking revealed that the patient has been receiving injected dexamethasone once or twice a week for 30 years. He showed some adverse effects of steroid use, such as generalized muscle weakness and skin changes. The needle electromyography demonstrated myopathic pattern. His dysphagia symptoms were considered as steroid-induced myopathy. This case suggests that physicians should be alert to potential cases of dysphagia and consider steroid-induced myopathy in the differential diagnosis of patients with dysphagia. Key Words: dysphagia, electrodiagnostic test, myopathy associated
Key Words: dysphagia, electrodiagnostic test, myopathy associated with corticosteroid abuse
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