PT  - JOURNAL ARTICLE
AU  - Gorniak, R.J.T.
AU  - Young, G.S.
AU  - Wiese, D.E.
AU  - Marty, F.M.
AU  - Schwartz, R.B.
TI  - MR Imaging of Human Herpesvirus-6–Associated Encephalitis in 4 Patients with Anterograde Amnesia after Allogeneic Hematopoietic Stem-Cell Transplantation
DP  - 2006 Apr 01
TA  - American Journal of Neuroradiology
PG  - 887--891
VI  - 27
IP  - 4
4099  - http://www.ajnr.org/content/27/4/887.short
4100  - http://www.ajnr.org/content/27/4/887.full
SO  - Am. J. Neuroradiol.2006 Apr 01; 27
AB  - SUMMARY: MR imaging is typically obtained during the work-up of patients who have undergone allogeneic hematopoietic stem-cell transplant who present with unexplained change in mental status, amnesia, or seizures. Although the differential diagnosis is broad in this setting, the presence of T2 prolongation limited to the medial aspect of one or both temporal lobes with or without associated reduced water diffusion may help limit the possible diagnoses. A frequent etiology seen in this context is human herpesvirus-6 (HHV6) infection. We report the evolution of MR imaging findings and clinical course in 4 patients with limbic encephalitis probably related to HHV6.