Complex sentence: The diagnosis of oculopharyngeal muscular dystrophy can be done via muscle biopsy, though a blood draw with genetic testing for GCG trinucleotide expansions in the PABPN1 gene is more common.Additionally, a distinction between OPMD and myasthenia gravis or mitochondrial myopathy must be made.
Split into simpler sentences: The diagnosis of oculopharyngeal muscular dystrophy can be done via muscle biopsy, though a blood draw with genetic testing for GCG trinucleotide expansions in the PABPN1 gene is more common. A distinction between OPMD and myasthenia gravis or mitochondrial myopathy must be made.