Yuka Nakaya

Inclusion-Body Myopathy with Paget Disease of the Bone and Frontotemporal Dementia (IBMPFD) with SCN4A Mutation: Modifying Factor or Not?

A 56-year-old man with a family history of myopathy developed generalized muscle weakness at age 45. At age 52, he was diagnosed with inclusion-body myopathy with Paget disease of bone and frontotemporal dementia (IBMPFD), confirmed by muscle pathology and a pathogenic VCP mutation (c.464G>A, p.R155H). Concurrent testi...