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A 69-year-old Caucasian female was referred to the Imaging Department for investigation of fever of unknown origin (FUO), fatigue for seven months, and recent onset of atypical chest pain. Laboratory tests revealed elevation of serum C-reactive protein levels and erythrocyte sedimentation rate. Positron emission tomography with computed tomography fusion (PET-CT) with F18-fluorodeoxyglucose (FDG) was performed for the evaluation of FUO by excluding malignancy. The FDG images revealed markedly diffuse and circumferential increased uptake suggesting diffuse inflammatory process along the walls […]

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Tractography is a new magnetic resonance technique that enables mapping and, consequently, evaluation of different white matter tracts in the central nervous system. It encompasses acquiring a sequence called diffusion tensor imaging in a common 1.5 or 3 Tesla magnetic resonance equipment, independently or associated to conventional images of the study(–). The acquired images are post-processed using several types of software – some are available online for free. The same acquisition of images allows calculating quantitative parameters, such as fractioned […]

In 1947, LaForet and Lynch first described the association between maternal infection by Varicella-zoster virus during the beginning of gestation and congenital anomalies in the newborn(). Today varicella during pregnancy is a very rare condition. Primary infection by varicella during gestation is estimated to affect one to seven per 10 thousand pregnant women(). […]