Development of a Training Game to Coordinate Torques Produced Between Arms.

The ability of individuals to accurately judge the forces that they generate is integral to seamlessly controlling their movements during everyday life. Individuals with chronic hemiparetic stroke have been shown to be impaired when matching forces between arms; this impairment may make activities as simple as carrying a tray challenging. Our goal was to develop a training protocol that individuals with stroke could use to improve their accuracy in judging the torques that they generate between arms.

[Aberrant renal papilla. Description of a new sign and review of the literature].

The aberrant renal papilla or papillary invagination is an uncommon congenital anomaly which, because of its radiological appearance, should be included in the differential diagnosis of processes associated with filling defects in the renal pelvis. Its halo of radiolucency and its longitudinal striae, its solid echogenicity and a possible associated vascular anomaly (angiodysplasia) should constitute the basis of the diagnosis. An ultrasonographic evaluation, conducted every 6 to 12 months can constitute, as in the case presented here, a form of follow-up avoiding the need for radical therapy.