| Syndrome with the association of gastrointestinal dysmotility, peripheral neuropathy, chronic progressive external ophthalmoplegia and leukoencephalopathy. The symptoms are progressive and the clinical picture is dominated by severe gastrointestinal disorders due to abnormal bowel motility. Morphological studies of the muscles reveal the presence of a low proportion of muscle fibers with mitochondrial proliferation (ragged-red fibers) or cytochrome c oxidase deficiency. Inherited in an autosomal recessive manner and is caused by mutations in the TYMP gene (22q13.32-qter). |
