26th August 2024

A 37-year-old man who has recently arrived in the UK from the Basque region of Spain presents with weakness of his neck

A 37-year-old man who has recently arrived in the UK from the Basque region of Spain presents with weakness of his neck and facial muscles. On examination, he has drooping eyelids and weakness of all muscle groups in his face, and weakness of his sternocleidomastoids bilaterally. You also note that he has frontal balding. You suspect a diagnosis of myotonic dystrophy. What investigation is it important to review at this visit?

Select the SINGLE most appropriate option from the list below. Select ONE option only.