| Disease ID | Source | Name | Description |
| 164310 | OMIM | Oculopharyngodistal myopathy 1 (OPDM1) | A form of oculopharyngodistal myopathy, a muscle disorder characterized by progressive ptosis, external ophthalmoplegia, and weakness of the masseter, facial, pharyngeal, and distal limb muscles. The myopathological features are presence of rimmed vacuoles in the muscle fibers and myopathic changes of differing severity. OPDM1 inheritance pattern is autosomal dominant. The disease is caused by variants affecting the gene represented in this entry. The causative mutation is a heterozygous trinucleotide repeat expansion (CGG) in the 5-prime untranslated region of the gene. |