Conditions / Syndrome

inclusion body myopathy with early-onset Paget disease of bone with or without frontotemporal dementia 3

info ยท Syndrome

An inclusion body myopathy with Paget disease of bone and frontotemporal dementia that has_material_basis_in heterozygous mutation in the HNRNPA1 gene on chromosome 12q13.13.

Signs and symptoms

  • Elevated circulating creatine kinase activity
  • Abdominal wall muscle weakness
  • Proximal lower limb muscle weakness
  • Foot dorsiflexor weakness
  • Muscle fiber inclusion bodies
  • Rimmed vacuoles
  • Elevated circulating alkaline phosphatase concentration
  • Loss of ambulation
  • Centrally nucleated skeletal muscle fibers
  • Myopathy

Also known as: IBMPFD3; MSP3; multisystem proteinopathy 3