Laryngeal involvement in mitochondrial myopathy.

A patient with a slowly progressive mitochondrial myopathy is presented. Mitochondrial myopathies are a diverse group of disorders both clinically and at the cellular level. In common with other neuromuscular disorders, bulbar symptoms may occur. However, though pharyngeal symptoms have been documented in all forms of the disorder, no previous account has described problems at the laryngeal level. We discuss the clinical findings and comment on the therapeutic options.