ACUTE DISSEMINATED ENCEPHALOMYELITIS – HERPES VIRUS 6 POST -INFECTION

Authors

  • Joana Amorim S. Pediatria, CH Porto
  • Isabel Couto Guerra S. Pediatria, CH Porto
  • Rosa Lima S. Pediatria, CH Porto
  • José Cunha S. Pediatria, CH Porto
  • Inês Carrilho S. Neuropediatria, CH Porto
  • Ana Ramos S. Pediatria, CH Porto

DOI:

https://doi.org/10.25753/BirthGrowthMJ.v22.i4.9894

Keywords:

Acute disseminated encephalomyelitis, arreflexic flaccid paraplegia, herpesvirus 6

Abstract

Background: Acute disseminated encephalomyelitis (ADEM) is a monophasic immune -mediated demyelinating disease of the central nervous system. The initial clinical presentation may be nonspecific, but is the result of involvement of different areas in white matter tracts of CNS and brain and spinal magnetic resonance imaging (MRI) is the gold standard complementary investigation for the diagnosis.

Case report: A 16 month-old child, hospitalized for loss of walking ability of acute onset, irritability and refusal to eat. The neurological examination revealed: irritability alternating with periods of drowsiness, arreflexic flaccid paraplegia and trunkal ataxia, and urinary retention. Examination of cerebrospinal fluid showed lymphocytic pleocytosis, and herpes virus 6 were isolated by Polymerase Chain Reaction technic. The MRI revealed T2-weight hyperintense diffuse signal in D2-D3 and from D6 to the medullary connus also. She started therapy with steroids and human immunoglobulin with progressive improvement.

Discussion: This is a case of ADEM of predominant spinal cord forcing the differential diagnosis with pictures of acute onset flaccid paraplegia. We highlight that herpesvirus 6 may be the agent of such a clinical picture.

Downloads

Download data is not yet available.

References

Menge T, Hemmer B, Nessler S, Wiendl H, Neuhaus O, Har-

tung H -P, et al. Acute disseminated encephalomyelitis: An

Update. Arch Neurol 2005; 62:1673 -80.

Lotze TE; Chadwick JD. Acute disseminated encephalomye-

litis in children: Pathogenesis, clinical features, and diagno-

sis. (UpToDate web site). October, 2012. Disponível em:

http://www.uptodate.com.

Soto -Hernandez JL, Human herpesvirus 6 encephalomyeli-

tis. Emerg Infect Dis 2004; 10:1700 -1.

Timothy TE, Chadwick JD. Acute disseminated encepha-

lomyelitis in children: Prognosis and treatment. (UpToDate

web site). October, 2012. Disponível em: http://www.uptoda-

te.com.

Denes E, Magy L, Pradeau K, Alain S, Weinbreck P, Ranger-Roguez S. Successful treatment of human herpesvirus 6

encephalomyelitis in an immunocompetent patient. Emerg

Infect Dis 2004; 10:729 -1.

Kamei A, Ichinohe S, Onuma R, Hiraga S, Fujiwara T. Acute

disseminated demyelination due to primary human herpesvi-

rus infection. Eur J Pediatr 1997; 156:709 -12.

Krupp LB, Banwell B, Tenembaum S, International Pediatric

MS Study Group. Consensus definitions proposed for pedia-

tric multiple sclerosis and related disorders. Neurology. 2007;

:S7 -S12.

Alper G, Sreedher G, Zuccoli G. Isolated brainstem lesion in

children: Is it acute disseminated encephalomyelitis or not?

Am J Neuroradiol 2013; 34:217 -20.

Firat AK, Karaka" HM, Yakinci C, Altinok T, Alkan A, Biçak

U. An unusual case of acute disseminated encephalomyelitis

confined to brainstem. Magn Reson Imaging 2004; 22:1329 -32.

Honkaniemi J, Dastidar P, Kähärä V, Haapasalo H. Delayed

MR Imaging Changes in Acute Disseminated Encephalomye-

litis. Am J Neuroradiol 2001; 22:1117 -24.

Wolf VL, Lupo PJ, Lotze TE. Pediatric Acute Transverse Mye-

litis Overview and Differential Diagnosis. J Child Neurol 2012;

:1426 -36.

Published

2016-09-05

How to Cite

1.
Amorim J, Guerra IC, Lima R, Cunha J, Carrilho I, Ramos A. ACUTE DISSEMINATED ENCEPHALOMYELITIS – HERPES VIRUS 6 POST -INFECTION. REVNEC [Internet]. 2016Sep.5 [cited 2024May6];22(4):234-7. Available from: https://revistas.rcaap.pt/nascercrescer/article/view/9894

Issue

Section

Case Reports

Most read articles by the same author(s)

<< < 1 2 3 > >>