title: Cardiomyopathy and myocyte intranuclear inclusions in neuronal intranuclear inclusion disease: a case report.
abstract: Neuronal intranuclear inclusion disease (NIID) is a progressive, usually fatal degenerative neurologic condition characterized by eosinophilic, intranuclear inclusions in neurons of the central and peripheral nervous system. We report a boy with onset of disease manifestations at age 3 and death at age 9, who showed clinical and pathologic findings characteristic of NIID. The case is unique because of cardiomyopathy manifested 1 year prior to death. Postmortem findings confirmed the presence of cardiomyopathy and revealed intranuclear inclusions in myocytes. Neither nuclear inclusions in the myocardium nor cardiac involvement have previously been reported in NIID.
authors.affiliation: Department of Pathology, Rhode Island Hospital, Providence.
authors.forename: C E
authors.initials: CE
authors.lastname: Oyer
authors.forename: S
authors.initials: S
authors.lastname: Cortez
authors.forename: P
authors.initials: P
authors.lastname: O'Shea
authors.forename: M
authors.initials: M
authors.lastname: Popovic
mesh_terms: D009202:Cardiomyopathies / Q000150:complications / Q000473:pathology*; D002467:Cell Nucleus / Q000648:ultrastructure; D002648:Child; D006801:Humans; D002479:Inclusion Bodies / Q000648:ultrastructure*; D008297:Male; D009206:Myocardium / Q000648:ultrastructure*; D009422:Nervous System Diseases / Q000150:complications / Q000473:pathology*; D009474:Neurons / Q000648:ultrastructure