An unusual autopsy case of cytokine storm-derived influenza-associated encephalopathy without typical histopathological findings: Autopsy case report

Akina Nara, Hisashi Nagai, Rutsuko Yamaguchi, Ken Ichi Yoshida, Hirotaro Iwase, Masashi Mizuguchi

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2 Citations (Scopus)

Abstract

Cytokine storm-derived influenza-associated encephalopathy is a severe complication, affecting not only the brain but also multiple systemic organs including the heart and lungs. Hundreds of Japanese children are afflicted by influenza-associated encephalopathy every year. Influenza-associated encephalopathy can be diagnosed by pathological changes, such as advanced brain edema and disruption of astrocytic projections, which is known as clasmatodendrosis. In the present case, despite the absence of significant histopathological findings in the brain, the diagnosis of influenza-associated encephalopathy was made on the basis of autopsy findings such as brain swelling, pathological findings including diffuse alveolar damage, and increase in the concentrations of interleukin-6 in both the serum and cerebrospinal fluid. In this case, the interval from high fever to death was approximately 7 hours and may have been too short for histopathological features to develop. This is an unusual autopsy case of cytokine storm-derived influenza-associated encephalopathy without typical histopathological findings.

Original languageEnglish
Pages (from-to)3-5
Number of pages3
JournalAmerican Journal of Forensic Medicine and Pathology
Volume36
Issue number1
DOIs
Publication statusPublished - 2015 Mar 13

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Keywords

  • Acute encephalopathy
  • Clasmatodendrosis
  • Cytokine storm
  • Infants
  • Influenza

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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