6533b85afe1ef96bd12b8bcf

RESEARCH PRODUCT

Intranuclear nemaline rod myopathy

Nigel G. LaingHans H. GoebelDouglas A. WeeksVassil KaimaktchievRandal R. NixonMichael Narus

subject

MalePoor prognosisPathologymedicine.medical_specialtyPhysiologyBiopsyIntranuclear Inclusion BodiesMyopathies Nemalinemedicine.disease_causeCellular and Molecular NeuroscienceNemaline myopathyPhysiology (medical)BiopsymedicineHumansMyocyteIntranuclear Nemaline Rod MyopathyChildMuscle SkeletalMyopathyActinCell NucleusMutationmedicine.diagnostic_testbusiness.industrymedicine.diseaseNeurology (clinical)medicine.symptombusiness

description

The clinical, pathologic, and genetic findings of a boy with intranuclear nemaline rod myopathy are described. Serial muscle biopsies revealed myocyte nuclei containing inclusions that were immunoreactive for α-actinin and increased with age. Genetic analysis revealed a Val163Leu ACTA1 mutation previously associated with nemaline rod myopathy. Although initially delayed, he has reached all milestones and remains stable. These findings suggest intranuclear rods may increase with time and do not necessarily imply a poor prognosis. Muscle Nerve, 2006

https://doi.org/10.1002/mus.20521