Mild encephalitis with reversible splenial (MERS) lesion syndrome due to influenza B virus.

We describe a 16-year-old boy with mild encephalitis with reversible lesions in the white matter and splenium of corpus callosum as a complication of an influenza B virus infection. Although more common in Asiatic children, it can also occur in Caucasian children and adults. There are several possible causes, including metabolic disorders, hypertension and infection, and the prognosis is usually good, even without treatment.

Doppler sonography for the diagnosis of carpal tunnel syndrome: a critical review.

Introduction: Doppler sonography may detect increased intraneural blood flow of the median nerve in carpal tunnel syndrome (CTS). The purpose of this review is to critically evaluate the literature about the diagnostic value of increased intraneural flow detected by sonography in CTS Methods: Systematic review of studies published between 1985 and 2013.

Results: The 7 studies we found had considerable differences in study design and had methodological shortcomings.