PMID- 28503579 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200930 IS - 2329-048X (Print) IS - 2329-048X (Electronic) IS - 2329-048X (Linking) VI - 1 IP - 1 DP - 2014 Jul-Sep TI - Anterior Commissure Involvement in Humanherpes Virus 6 Encephalitis. PG - 2329048X14544473 LID - 10.1177/2329048X14544473 [doi] LID - 2329048X14544473 AB - The anterior commissure is an evolutionarily conserved nerve bundle that connects the right and left hemispheres, playing pivotal neurological roles in visual, linguistic, and olfactory functions. The authors herein describe a 16-month-old boy with high fever, lethargy, and recurrent seizures. Polymerase chain reaction (PCR) examination detected human herpesvirus 6 (HHV-6) in both the cerebrospinal fluid and the pharyngeal swabs, leading to the diagnosis of HHV-6 encephalitis. Brain magnetic resonance imaging (MRI) 4 days after disease onset distinctly revealed anterior commissure involvement on diffusion-weighted images and apparent diffusion coefficient maps, suggesting that this lesion was cytotoxic edema. After treatment with 30 mg/kg/d methylprednisolone for 3 days, the anterior commissure involvement on MRI was completely diminished. This is the first MRI report rarely showing anterior commissure involvement in encephalitis, suggesting that this lesion might be caused by direct invasion of HHV-6 or transient axonal swelling associated with inferior temporal lobe damage. FAU - Fujii, Katsunori AU - Fujii K AD - Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan. FAU - Ikehara, Hajime AU - Ikehara H AD - Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan. FAU - Nagasawa, Koo AU - Nagasawa K AD - Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan. FAU - Hishiki, Haruka AU - Hishiki H AD - Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan. FAU - Uchikawa, Hideki AU - Uchikawa H AD - Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan. FAU - Shimojo, Naoki AU - Shimojo N AD - Department of Pediatrics, Chiba University Graduate School of Medicine, Chiba, Japan. LA - eng PT - Journal Article DEP - 20140826 PL - United States TA - Child Neurol Open JT - Child neurology open JID - 101691975 PMC - PMC5417093 OTO - NOTNLM OT - connecting fiber OT - cytotoxic edema OT - human herpesvirus 6 OT - magnetic resonance imaging COIS- Declaration of Conflicting Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2014/08/26 00:00 MHDA- 2014/08/26 00:01 PMCR- 2014/08/26 CRDT- 2017/05/16 06:00 PHST- 2014/04/21 00:00 [received] PHST- 2014/04/21 00:00 [revised] PHST- 2014/06/01 00:00 [accepted] PHST- 2017/05/16 06:00 [entrez] PHST- 2014/08/26 00:00 [pubmed] PHST- 2014/08/26 00:01 [medline] PHST- 2014/08/26 00:00 [pmc-release] AID - 10.1177_2329048X14544473 [pii] AID - 10.1177/2329048X14544473 [doi] PST - epublish SO - Child Neurol Open. 2014 Aug 26;1(1):2329048X14544473. doi: 10.1177/2329048X14544473. eCollection 2014 Jul-Sep.