Coexistence of X-linked recessive Emery-Dreifuss muscular dystrophy with inclusion body myositis-like morphology

Acta Neuropathol. 2004 Mar;107(3):197-203. doi: 10.1007/s00401-003-0794-y. Epub 2004 Jan 8.

Abstract

We reported three cases (two familial and one sporadic) of X-linked Emery-Dreifuss muscular dystrophy (EDMD), genetically documented. Two patients demonstrated a typical inclusion body myositis (IBM)-like morphology. The third patient had only minor changes. Patients had elbow and ankle contractures, progressive wasting of humeroperoneal muscles and cardiac failure (pacemaker implantation in all). There was a mutation within the Xq28 gene and complete absence of emerin in the nuclear membrane. Mononuclear cell infiltrations, rimmed vacuoles, amyloid deposits, as well as cytoplasmic and nuclear tubulofilamentous muscle inclusions were most unusual findings. Coexistence of IBM-like morphology and X-linked recessive EDMD might indicate that pathological features of IBM are nonspecific and may be present in other neuromuscular disorders.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Chromosomes, Human, X*
  • DNA Mutational Analysis
  • Family Health*
  • Genetic Linkage
  • Humans
  • Immunohistochemistry / methods
  • Male
  • Membrane Proteins / metabolism
  • Microscopy, Electron / methods
  • Muscle, Skeletal / pathology
  • Muscle, Skeletal / physiopathology
  • Muscle, Skeletal / ultrastructure
  • Muscular Dystrophy, Emery-Dreifuss / complications*
  • Muscular Dystrophy, Emery-Dreifuss / genetics
  • Muscular Dystrophy, Emery-Dreifuss / pathology
  • Mutation
  • Myositis, Inclusion Body / complications*
  • Myositis, Inclusion Body / genetics
  • Myositis, Inclusion Body / pathology
  • Nuclear Proteins
  • Thymopoietins / metabolism

Substances

  • Membrane Proteins
  • Nuclear Proteins
  • Thymopoietins
  • emerin